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10731507257123 = 371132957868019
BaseRepresentation
bin1001110000101001111110…
…1011011000111100100011
31101222220220012012011000022
42130022133223120330203
52401311111324211443
634453553020144055
72155216516421312
oct234123753307443
941886805164008
1010731507257123
113468230093294
121253a0809802b
135cac91020a73
1429159cb10279
15139240103e68
hex9c29fad8f23

10731507257123 has 16 divisors (see below), whose sum is σ = 11122856889120. Its totient is φ = 10345552390656.

The previous prime is 10731507257117. The next prime is 10731507257153. The reversal of 10731507257123 is 32175270513701.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10731507257123 - 214 = 10731507240739 is a prime.

It is a super-2 number, since 2×107315072571232 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10731507257153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11929208 + ... + 12797226.

It is an arithmetic number, because the mean of its divisors is an integer number (695178555570).

Almost surely, 210731507257123 is an apocalyptic number.

10731507257123 is a deficient number, since it is larger than the sum of its proper divisors (391349631997).

10731507257123 is a wasteful number, since it uses less digits than its factorization.

10731507257123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871126.

The product of its (nonzero) digits is 308700, while the sum is 44.

The spelling of 10731507257123 in words is "ten trillion, seven hundred thirty-one billion, five hundred seven million, two hundred fifty-seven thousand, one hundred twenty-three".

Divisors: 1 37 113 2957 4181 109409 334141 868019 12363217 32116703 98086147 2566732183 3629187439 94969090771 290040736679 10731507257123