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131213033124042 = 23235317939982653
BaseRepresentation
bin11101110101011001101010…
…001110101011000011001010
3122012120211202212211200212010
4131311121222032223003022
5114144243242434432132
61143022234003400350
736431554165141632
oct3565315216530312
9565524685750763
10131213033124042
1138899153533311
1212871b6b3830b6
13582a44a06b7bc
142458a5d5d56c2
15102824357a6cc
hex77566a3ab0ca

131213033124042 has 32 divisors (see below), whose sum is σ = 279002610235008. Its totient is φ = 41046680307776.

The previous prime is 131213033123951. The next prime is 131213033124071. The reversal of 131213033124042 is 240421330312131.

It is a super-2 number, since 2×1312130331240422 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8969984013 + ... + 8969998640.

It is an arithmetic number, because the mean of its divisors is an integer number (8718831569844).

Almost surely, 2131213033124042 is an apocalyptic number.

131213033124042 is an abundant number, since it is smaller than the sum of its proper divisors (147789577110966).

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

131213033124042 is a wasteful number, since it uses less digits than its factorization.

131213033124042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17939982734.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 131213033124042 its reverse (240421330312131), we get a palindrome (371634363436173).

The spelling of 131213033124042 in words is "one hundred thirty-one trillion, two hundred thirteen billion, thirty-three million, one hundred twenty-four thousand, forty-two".

Divisors: 1 2 3 6 23 46 53 69 106 138 159 318 1219 2438 3657 7314 17939982653 35879965306 53819947959 107639895918 412619601019 825239202038 950819080609 1237858803057 1901638161218 2475717606114 2852457241827 5704914483654 21868838854007 43737677708014 65606516562021 131213033124042