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10134078731 = 71447725533
BaseRepresentation
bin10010111000000100…
…11100010100001011
3222011021001112120022
421130002130110023
5131223311004411
64353332251055
7506063151020
oct113402342413
928137045508
1010134078731
114330472387
121b69a70a8b
13c567035ba
146c1ca5547
153e4a44edb
hex25c09c50b

10134078731 has 4 divisors (see below), whose sum is σ = 11581804272. Its totient is φ = 8686353192.

The previous prime is 10134078727. The next prime is 10134078761. The reversal of 10134078731 is 13787043101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10134078731 - 22 = 10134078727 is a prime.

It is a super-2 number, since 2×101340787312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10134078691 and 10134078700.

It is not an unprimeable number, because it can be changed into a prime (10134078701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723862760 + ... + 723862773.

It is an arithmetic number, because the mean of its divisors is an integer number (2895451068).

Almost surely, 210134078731 is an apocalyptic number.

10134078731 is a deficient number, since it is larger than the sum of its proper divisors (1447725541).

10134078731 is an equidigital number, since it uses as much as digits as its factorization.

10134078731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447725540.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 10134078731 in words is "ten billion, one hundred thirty-four million, seventy-eight thousand, seven hundred thirty-one".

Divisors: 1 7 1447725533 10134078731