Base | Representation |
---|---|
bin | 11100111100100010… |
… | …000100101010011001 |
3 | 2222020001010122210111 |
4 | 130330202010222121 |
5 | 1002123031223100 |
6 | 22140023244321 |
7 | 2150125332364 |
oct | 347442045231 |
9 | 88201118714 |
10 | 31080336025 |
11 | 121aa048522 |
12 | 60348a96a1 |
13 | 2c1414c59b |
14 | 170bb090db |
15 | c1d8c86ba |
hex | 73c884a99 |
31080336025 has 36 divisors (see below), whose sum is σ = 40385501100. Its totient is φ = 23699544960.
The previous prime is 31080336017. The next prime is 31080336031. The reversal of 31080336025 is 52063308013.
It can be written as a sum of positive squares in 6 ways, for example, as 6191171856 + 24889164169 = 78684^2 + 157763^2 .
It is not a de Polignac number, because 31080336025 - 23 = 31080336017 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4521291 + ... + 4528159.
It is an arithmetic number, because the mean of its divisors is an integer number (1121819475).
Almost surely, 231080336025 is an apocalyptic number.
It is an amenable number.
31080336025 is a deficient number, since it is larger than the sum of its proper divisors (9305165075).
31080336025 is an equidigital number, since it uses as much as digits as its factorization.
31080336025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7066 (or 6982 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 31.
The spelling of 31080336025 in words is "thirty-one billion, eighty million, three hundred thirty-six thousand, twenty-five".
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