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115212452142550 = 25271100592990927
BaseRepresentation
bin11010001100100011111101…
…010010001001110111010110
3120002221012110212211222100111
4122030203331102021313112
5110100120100222030200
61045011511515033234
733160552652634430
oct3214437522116726
9502835425758314
10115212452142550
113378a365719954
1210b08b4113b81a
134c396453b6379
142064453481650
15d4be1868c0ba
hex68c8fd489dd6

115212452142550 has 48 divisors (see below), whose sum is σ = 244911062545920. Its totient is φ = 39501040044960.

The previous prime is 115212452142527. The next prime is 115212452142563. The reversal of 115212452142550 is 55241254212511.

It is a congruent number.

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, 37025187 + ... + 40016113.

It is an arithmetic number, because the mean of its divisors is an integer number (5102313803040).

Almost surely, 2115212452142550 is an apocalyptic number.

115212452142550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115212452142550 is an abundant number, since it is smaller than the sum of its proper divisors (129698610403370).

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

115212452142550 is a wasteful number, since it uses less digits than its factorization.

115212452142550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101005 (or 3101000 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

The spelling of 115212452142550 in words is "one hundred fifteen trillion, two hundred twelve billion, four hundred fifty-two million, one hundred forty-two thousand, five hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 110059 220118 550295 770413 1100590 1540826 2751475 2990927 3852065 5502950 5981854 7704130 14954635 19260325 20936489 29909270 38520650 41872978 74773175 104682445 149546350 209364890 523412225 1046824450 329178434693 658356869386 1645892173465 2304249042851 3291784346930 4608498085702 8229460867325 11521245214255 16458921734650 23042490428510 57606226071275 115212452142550