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12315605144102 = 213826957283483
BaseRepresentation
bin1011001100110111001101…
…0001010001001000100110
31121121100201200211120212122
42303031303101101020212
53103234324404102402
642105413315345542
72410526114326661
oct263156321211046
947540650746778
1012315605144102
113a19023044907
12146aa1b2b22b2
136b4483544670
1430811546a6d8
151655555caca2
hexb3373451226

12315605144102 has 16 divisors (see below), whose sum is σ = 19896845332560. Its totient is φ = 5683437950112.

The previous prime is 12315605144099. The next prime is 12315605144131. The reversal of 12315605144102 is 20144150651321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28426748 + ... + 28856735.

It is an arithmetic number, because the mean of its divisors is an integer number (1243552833285).

Almost surely, 212315605144102 is an apocalyptic number.

12315605144102 is a deficient number, since it is larger than the sum of its proper divisors (7581240188458).

12315605144102 is a wasteful number, since it uses less digits than its factorization.

12315605144102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57291767.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 12315605144102 its reverse (20144150651321), we get a palindrome (32459755795423).

The spelling of 12315605144102 in words is "twelve trillion, three hundred fifteen billion, six hundred five million, one hundred forty-four thousand, one hundred two".

Divisors: 1 2 13 26 8269 16538 107497 214994 57283483 114566966 744685279 1489370558 473677120927 947354241854 6157802572051 12315605144102