Base | Representation |
---|---|
bin | 111101000110011000… |
… | …1110000011001000010 |
3 | 110112200022101221021020 |
4 | 1322030301300121002 |
5 | 4122204440404021 |
6 | 140135532210310 |
7 | 12323346004356 |
oct | 1721461603102 |
9 | 415608357236 |
10 | 131210872386 |
11 | 50712131510 |
12 | 2151a309996 |
13 | c4b0a04979 |
14 | 64ca229466 |
15 | 362e2ea7c6 |
hex | 1e8cc70642 |
131210872386 has 32 divisors (see below), whose sum is σ = 286331044608. Its totient is φ = 39753540240.
The previous prime is 131210872381. The next prime is 131210872393. The reversal of 131210872386 is 683278012131.
131210872386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131210872381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182961 + ... + 543963.
It is an arithmetic number, because the mean of its divisors is an integer number (8947845144).
Almost surely, 2131210872386 is an apocalyptic number.
131210872386 is an abundant number, since it is smaller than the sum of its proper divisors (155120172222).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131210872386 is a wasteful number, since it uses less digits than its factorization.
131210872386 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 366526.
The product of its (nonzero) digits is 96768, while the sum is 42.
The spelling of 131210872386 in words is "one hundred thirty-one billion, two hundred ten million, eight hundred seventy-two thousand, three hundred eighty-six".
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