Base | Representation |
---|---|
bin | 111101000110011110… |
… | …0111010000000000001 |
3 | 110112200111220102210101 |
4 | 1322030330322000001 |
5 | 4122211212422304 |
6 | 140140115002401 |
7 | 12323412600151 |
oct | 1721474720001 |
9 | 415614812711 |
10 | 131213795329 |
11 | 50713848571 |
12 | 2151b299401 |
13 | c4b14b9216 |
14 | 64ca78a761 |
15 | 362e6c68a4 |
hex | 1e8cf3a001 |
131213795329 has 24 divisors (see below), whose sum is σ = 138988100160. Its totient is φ = 123851045472.
The previous prime is 131213795327. The next prime is 131213795353. The reversal of 131213795329 is 923597312131.
It is not a de Polignac number, because 131213795329 - 21 = 131213795327 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131213795327) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15960582 + ... + 15968800.
It is an arithmetic number, because the mean of its divisors is an integer number (5791170840).
Almost surely, 2131213795329 is an apocalyptic number.
It is an amenable number.
131213795329 is a deficient number, since it is larger than the sum of its proper divisors (7774304831).
131213795329 is a wasteful number, since it uses less digits than its factorization.
131213795329 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8661 (or 8638 counting only the distinct ones).
The product of its digits is 306180, while the sum is 46.
The spelling of 131213795329 in words is "one hundred thirty-one billion, two hundred thirteen million, seven hundred ninety-five thousand, three hundred twenty-nine".
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