Base | Representation |
---|---|
bin | 11101001010011111… |
… | …011011101111001011 |
3 | 2222211100210200212002 |
4 | 131022133123233023 |
5 | 1003113004301011 |
6 | 22215150541215 |
7 | 2156001033431 |
oct | 351237335713 |
9 | 88740720762 |
10 | 31314525131 |
11 | 1230a26223a |
12 | 609b20780b |
13 | 2c50817516 |
14 | 1730c6ad51 |
15 | c34237c3b |
hex | 74a7dbbcb |
31314525131 has 8 divisors (see below), whose sum is σ = 31869314400. Its totient is φ = 30761072640.
The previous prime is 31314525097. The next prime is 31314525161. The reversal of 31314525131 is 13152541313.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31314525131 - 214 = 31314508747 is a prime.
It is a super-2 number, since 2×313145251312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31314525094 and 31314525103.
It is not an unprimeable number, because it can be changed into a prime (31314525161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286871 + ... + 380688.
It is an arithmetic number, because the mean of its divisors is an integer number (3983664300).
Almost surely, 231314525131 is an apocalyptic number.
31314525131 is a deficient number, since it is larger than the sum of its proper divisors (554789269).
31314525131 is an equidigital number, since it uses as much as digits as its factorization.
31314525131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 668389.
The product of its digits is 5400, while the sum is 29.
The spelling of 31314525131 in words is "thirty-one billion, three hundred fourteen million, five hundred twenty-five thousand, one hundred thirty-one".
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