Base | Representation |
---|---|
bin | 11100111010011000… |
… | …010011100001001111 |
3 | 2222010112011211022020 |
4 | 130322120103201033 |
5 | 1002034310033012 |
6 | 22132253221223 |
7 | 2146206344652 |
oct | 347230234117 |
9 | 88115154266 |
10 | 31044221007 |
11 | 121907207a8 |
12 | 6024791813 |
13 | 2c09816157 |
14 | 1706dc7899 |
15 | c1a642a8c |
hex | 73a61384f |
31044221007 has 16 divisors (see below), whose sum is σ = 42179492448. Its totient is φ = 20302663680.
The previous prime is 31044220967. The next prime is 31044221053. The reversal of 31044221007 is 70012244013.
It is a happy number.
It is not a de Polignac number, because 31044221007 - 212 = 31044216911 is a prime.
It is a super-3 number, since 3×310442210073 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31044221707) 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, 1739007 + ... + 1756767.
It is an arithmetic number, because the mean of its divisors is an integer number (2636218278).
Almost surely, 231044221007 is an apocalyptic number.
31044221007 is a deficient number, since it is larger than the sum of its proper divisors (11135271441).
31044221007 is a wasteful number, since it uses less digits than its factorization.
31044221007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28810.
The product of its (nonzero) digits is 1344, while the sum is 24.
The spelling of 31044221007 in words is "thirty-one billion, forty-four million, two hundred twenty-one thousand, seven".
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