Base | Representation |
---|---|
bin | 111101001010001001… |
… | …1110101000011001000 |
3 | 110120000010012022201200 |
4 | 1322110103311003020 |
5 | 4122434313313442 |
6 | 140200244544200 |
7 | 12326442106311 |
oct | 1722423650310 |
9 | 416003168650 |
10 | 131337244872 |
11 | 507774a5a89 |
12 | 215546b2060 |
13 | c500c502a2 |
14 | 64dcd23608 |
15 | 363a45e34c |
hex | 1e944f50c8 |
131337244872 has 48 divisors (see below), whose sum is σ = 362416464540. Its totient is φ = 42953059968.
The previous prime is 131337244867. The next prime is 131337244873. The reversal of 131337244872 is 278442733131.
131337244872 is a `hidden beast` number, since 1 + 3 + 1 + 337 + 244 + 8 + 72 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 131112064836 + 225180036 = 362094^2 + 15006^2 .
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (131337244873) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17204943 + ... + 17212574.
Almost surely, 2131337244872 is an apocalyptic number.
131337244872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131337244872 is an abundant number, since it is smaller than the sum of its proper divisors (231079219668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131337244872 is a wasteful number, since it uses less digits than its factorization.
131337244872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34417582 (or 34417575 counting only the distinct ones).
The product of its digits is 677376, while the sum is 45.
The spelling of 131337244872 in words is "one hundred thirty-one billion, three hundred thirty-seven million, two hundred forty-four thousand, eight hundred seventy-two".
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