Base | Representation |
---|---|
bin | 111101000100010110… |
… | …1010000101010111100 |
3 | 110112111112220120121112 |
4 | 1322020231100222330 |
5 | 4122040000210040 |
6 | 140125052421152 |
7 | 12321556403006 |
oct | 1721055205274 |
9 | 415445816545 |
10 | 131142585020 |
11 | 50687630177 |
12 | 214bb4777b8 |
13 | c49c815845 |
14 | 64c1131376 |
15 | 362830c365 |
hex | 1e88b50abc |
131142585020 has 12 divisors (see below), whose sum is σ = 275399428584. Its totient is φ = 52457034000.
The previous prime is 131142584971. The next prime is 131142585031. The reversal of 131142585020 is 20585241131.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3278564606 + ... + 3278564645.
It is an arithmetic number, because the mean of its divisors is an integer number (22949952382).
Almost surely, 2131142585020 is an apocalyptic number.
131142585020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131142585020 is an abundant number, since it is smaller than the sum of its proper divisors (144256843564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131142585020 is a wasteful number, since it uses less digits than its factorization.
131142585020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6557129260 (or 6557129258 counting only the distinct ones).
The product of its (nonzero) digits is 9600, while the sum is 32.
The spelling of 131142585020 in words is "one hundred thirty-one billion, one hundred forty-two million, five hundred eighty-five thousand, twenty".
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