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131201431413402 = 23731412457784111
BaseRepresentation
bin11101110101001110110110…
…101101101010001010011010
3122012112201211100011201210110
4131311032312231222022122
5114144101012420212102
61143013034442425150
736430663531213440
oct3565166655521232
9565481740151713
10131201431413402
113889423a6893a9
121286b871b021b6
13582931b599a6c
14245827c854b90
151027cb4c8186c
hex7753b6b6a29a

131201431413402 has 64 divisors (see below), whose sum is σ = 317113137266688. Its totient is φ = 35392091184000.

The previous prime is 131201431413391. The next prime is 131201431413431. The reversal of 131201431413402 is 204314134102131.

It is a self number, because there is not a number n which added to its sum of digits gives 131201431413402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1228838674 + ... + 1228945437.

It is an arithmetic number, because the mean of its divisors is an integer number (4954892769792).

Almost surely, 2131201431413402 is an apocalyptic number.

131201431413402 is an abundant number, since it is smaller than the sum of its proper divisors (185911705853286).

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

131201431413402 is a wasteful number, since it uses less digits than its factorization.

131201431413402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457784195.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131201431413402 its reverse (204314134102131), we get a palindrome (335515565515533).

The spelling of 131201431413402 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred thirty-one million, four hundred thirteen thousand, four hundred two".

Divisors: 1 2 3 6 7 14 21 31 41 42 62 82 93 123 186 217 246 287 434 574 651 861 1271 1302 1722 2542 3813 7626 8897 17794 26691 53382 2457784111 4915568222 7373352333 14746704666 17204488777 34408977554 51613466331 76191307441 100769148551 103226932662 152382614882 201538297102 228573922323 302307445653 457147844646 533339152087 604614891306 705384039857 1066678304174 1410768079714 1600017456261 2116152119571 3123843605081 3200034912522 4232304239142 6247687210162 9371530815243 18743061630486 21866905235567 43733810471134 65600715706701 131201431413402