Base | Representation |
---|---|
bin | 111101001001101110… |
… | …1100000000001101000 |
3 | 110112222010101202112100 |
4 | 1322103131200001220 |
5 | 4122422142043414 |
6 | 140155015413400 |
7 | 12326210051625 |
oct | 1722335400150 |
9 | 415863352470 |
10 | 131323002984 |
11 | 5076a458928 |
12 | 2154b984260 |
13 | c4cb004a34 |
14 | 64db09734c |
15 | 3639099609 |
hex | 1e93760068 |
131323002984 has 48 divisors (see below), whose sum is σ = 356346619200. Its totient is φ = 43690623264.
The previous prime is 131323002971. The next prime is 131323002989. The reversal of 131323002984 is 489200323131.
131323002984 is a `hidden beast` number, since 1 + 31 + 32 + 300 + 298 + 4 = 666.
It is a super-2 number, since 2×1313230029842 (a number of 23 digits) contains 22 as substring.
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 (131323002989) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1706064 + ... + 1781375.
It is an arithmetic number, because the mean of its divisors is an integer number (7423887900).
Almost surely, 2131323002984 is an apocalyptic number.
It is an amenable number.
131323002984 is an abundant number, since it is smaller than the sum of its proper divisors (225023616216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131323002984 is a wasteful number, since it uses less digits than its factorization.
131323002984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3487974 (or 3487967 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The spelling of 131323002984 in words is "one hundred thirty-one billion, three hundred twenty-three million, two thousand, nine hundred eighty-four".
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