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131252455050400 = 25522713371179593
BaseRepresentation
bin11101110101111110010111…
…111101011000110010100000
3122012201121112021011001101201
4131311332113331120302200
5114200420011443103100
61143052313452210544
736434451123034555
oct3565762775306240
9565647467131351
10131252455050400
113890394314a042
1212879731769a54
135831090431648
14245a91d0c6a2c
15102929e42636a
hex775f97f58ca0

131252455050400 has 144 divisors (see below), whose sum is σ = 321699611657088. Its totient is φ = 52291443456000.

The previous prime is 131252455050389. The next prime is 131252455050461. The reversal of 131252455050400 is 4050554252131.

It is a super-3 number, since 3×1312524550504003 (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131252455050400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 730743004 + ... + 730922596.

It is an arithmetic number, because the mean of its divisors is an integer number (2234025080952).

Almost surely, 2131252455050400 is an apocalyptic number.

131252455050400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131252455050400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160849805828544).

131252455050400 is an abundant number, since it is smaller than the sum of its proper divisors (190447156606688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131252455050400 is a wasteful number, since it uses less digits than its factorization.

131252455050400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183255 (or 183242 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 131252455050400 in words is "one hundred thirty-one trillion, two hundred fifty-two billion, four hundred fifty-five million, fifty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 271 400 542 800 1084 1355 2168 2710 3371 4336 5420 6742 6775 8672 10840 13484 13550 16855 21680 26968 27100 33710 43360 53936 54200 67420 84275 107872 108400 134840 168550 179593 216800 269680 337100 359186 539360 674200 718372 897965 913541 1348400 1436744 1795930 1827082 2696800 2873488 3591860 3654164 4489825 4567705 5746976 7183720 7308328 8979650 9135410 14367440 14616656 17959300 18270820 22838525 28734880 29233312 35918600 36541640 45677050 48669703 71837200 73083280 91354100 97339406 143674400 146166560 182708200 194678812 243348515 365416400 389357624 486697030 605408003 730832800 778715248 973394060 1210816006 1216742575 1557430496 1946788120 2421632012 2433485150 3027040015 3893576240 4843264024 4866970300 6054080030 7787152480 9686528048 9733940600 12108160060 15135200075 19373056096 19467881200 24216320120 30270400150 38935762400 48432640240 60540800300 96865280480 121081600600 164065568813 242163201200 328131137626 484326402400 656262275252 820327844065 1312524550504 1640655688130 2625049101008 3281311376260 4101639220325 5250098202016 6562622752520 8203278440650 13125245505040 16406556881300 26250491010080 32813113762600 65626227525200 131252455050400