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31327923045 = 3519109922537
BaseRepresentation
bin11101001011010010…
…100010101101100101
32222212022000101100010
4131023102202231211
51003124422014140
622220350040433
72156222644416
oct351322425545
988768011303
1031327923045
11123168832a1
1260a37a9119
132c53528893
14173295780d
15c354d2880
hex74b4a2b65

31327923045 has 16 divisors (see below), whose sum is σ = 52762818240. Its totient is φ = 15828845184.

The previous prime is 31327923037. The next prime is 31327923071. The reversal of 31327923045 is 54032972313.

It is not a de Polignac number, because 31327923045 - 23 = 31327923037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31327922994 and 31327923012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54960984 + ... + 54961553.

It is an arithmetic number, because the mean of its divisors is an integer number (3297676140).

Almost surely, 231327923045 is an apocalyptic number.

It is an amenable number.

31327923045 is a deficient number, since it is larger than the sum of its proper divisors (21434895195).

31327923045 is a wasteful number, since it uses less digits than its factorization.

31327923045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109922564.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 31327923045 in words is "thirty-one billion, three hundred twenty-seven million, nine hundred twenty-three thousand, forty-five".

Divisors: 1 3 5 15 19 57 95 285 109922537 329767611 549612685 1648838055 2088528203 6265584609 10442641015 31327923045