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31104640113 = 3293761158407
BaseRepresentation
bin11100111101111110…
…110010010001110001
32222021201212102201220
4130331332302101301
51002200241440423
622142252215253
72150542035651
oct347576622161
988251772656
1031104640113
1112211838548
126040a6a529
132c191abac1
141711034361
15c20ac99e3
hex73dfb2471

31104640113 has 32 divisors (see below), whose sum is σ = 44785109760. Its totient is φ = 19160789760.

The previous prime is 31104640109. The next prime is 31104640163.

31104640113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31104640113 - 22 = 31104640109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31104640163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117156 + ... + 275562.

It is an arithmetic number, because the mean of its divisors is an integer number (1399534680).

Almost surely, 231104640113 is an apocalyptic number.

It is an amenable number.

31104640113 is a deficient number, since it is larger than the sum of its proper divisors (13680469647).

31104640113 is a wasteful number, since it uses less digits than its factorization.

31104640113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158537.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 31104640113 in words is "thirty-one billion, one hundred four million, six hundred forty thousand, one hundred thirteen".

Divisors: 1 3 29 37 61 87 111 183 1073 1769 2257 3219 5307 6771 65453 158407 196359 475221 4593803 5861059 9662827 13781409 17583177 28988481 169970711 280221983 357524599 509912133 840665949 1072573797 10368213371 31104640113