Base | Representation |
---|---|
bin | 11100111010011001… |
… | …010000110101000010 |
3 | 2222010112122120210002 |
4 | 130322121100311002 |
5 | 1002034341102010 |
6 | 22132302440002 |
7 | 2146211442050 |
oct | 347231206502 |
9 | 88115576702 |
10 | 31044472130 |
11 | 12190882441 |
12 | 6024893002 |
13 | 2c098a3549 |
14 | 17070511d0 |
15 | c1a6921a5 |
hex | 73a650d42 |
31044472130 has 16 divisors (see below), whose sum is σ = 63862914240. Its totient is φ = 10643818992.
The previous prime is 31044472097. The next prime is 31044472159. The reversal of 31044472130 is 3127444013.
It is a junction number, because it is equal to n+sod(n) for n = 31044472093 and 31044472102.
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, 221746160 + ... + 221746299.
It is an arithmetic number, because the mean of its divisors is an integer number (3991432140).
Almost surely, 231044472130 is an apocalyptic number.
31044472130 is an abundant number, since it is smaller than the sum of its proper divisors (32818442110).
31044472130 is a wasteful number, since it uses less digits than its factorization.
31044472130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 443492473.
The product of its (nonzero) digits is 8064, while the sum is 29.
The spelling of 31044472130 in words is "thirty-one billion, forty-four million, four hundred seventy-two thousand, one hundred thirty".
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