Base | Representation |
---|---|
bin | 11101001010001111… |
… | …011011110010000010 |
3 | 2222211001220121121021 |
4 | 131022033123302002 |
5 | 1003110421043020 |
6 | 22214521020054 |
7 | 2155620264610 |
oct | 351217336202 |
9 | 88731817537 |
10 | 31310331010 |
11 | 12307958122 |
12 | 609992462a |
13 | 2c4c9a94aa |
14 | 17304986b0 |
15 | c33baa1aa |
hex | 74a3dbc82 |
31310331010 has 32 divisors (see below), whose sum is σ = 65980801152. Its totient is φ = 10473141120.
The previous prime is 31310331007. The next prime is 31310331061. The reversal of 31310331010 is 1013301313.
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, 5451892 + ... + 5457631.
It is an arithmetic number, because the mean of its divisors is an integer number (2061900036).
Almost surely, 231310331010 is an apocalyptic number.
31310331010 is an abundant number, since it is smaller than the sum of its proper divisors (34670470142).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31310331010 is a wasteful number, since it uses less digits than its factorization.
31310331010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10909578.
The product of its (nonzero) digits is 81, while the sum is 16.
Adding to 31310331010 its reverse (1013301313), we get a palindrome (32323632323).
The spelling of 31310331010 in words is "thirty-one billion, three hundred ten million, three hundred thirty-one thousand, ten".
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