Base | Representation |
---|---|
bin | 11101101000100000… |
… | …000010101001000000 |
3 | 10001010110011220212000 |
4 | 131220200002221000 |
5 | 1010130402012320 |
6 | 22341134104000 |
7 | 2204323355124 |
oct | 355040025100 |
9 | 101113156760 |
10 | 31818000960 |
11 | 12548483069 |
12 | 61bb94b000 |
13 | 3000c18705 |
14 | 177ba89584 |
15 | c6353ac90 |
hex | 768802a40 |
31818000960 has 112 divisors (see below), whose sum is σ = 112246867200. Its totient is φ = 8484797952.
The previous prime is 31818000959. The next prime is 31818000961. The reversal of 31818000960 is 6900081813.
It is an interprime number because it is at equal distance from previous prime (31818000959) and next prime (31818000961).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (31818000961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1832680 + ... + 1849959.
Almost surely, 231818000960 is an apocalyptic number.
31818000960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
31818000960 is an abundant number, since it is smaller than the sum of its proper divisors (80428866240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31818000960 is a wasteful number, since it uses less digits than its factorization.
31818000960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3682665 (or 3682649 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 36.
The spelling of 31818000960 in words is "thirty-one billion, eight hundred eighteen million, nine hundred sixty", and thus it is an aban number.
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