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131013020992 = 2672312714773
BaseRepresentation
bin111101000000011111…
…1000000110101000000
3110112011112010001011211
41322000333000311000
54121303313132432
6140104143415504
712315424206220
oct1720077006500
9415145101154
10131013020992
1150620486867
1221483bb4594
13c47ba20639
1464abc46080
15361bc67d47
hex1e80fc0d40

131013020992 has 56 divisors (see below), whose sum is σ = 310037049216. Its totient is φ = 53707196928.

The previous prime is 131013020959. The next prime is 131013020993. The reversal of 131013020992 is 299020310131.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131013020993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6347083 + ... + 6367690.

Almost surely, 2131013020992 is an apocalyptic number.

It is an amenable number.

131013020992 is an abundant number, since it is smaller than the sum of its proper divisors (179024028224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131013020992 is a wasteful number, since it uses less digits than its factorization.

131013020992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714815 (or 12714805 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 131013020992 in words is "one hundred thirty-one billion, thirteen million, twenty thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 64 92 112 161 184 224 322 368 448 644 736 1288 1472 2576 5152 10304 12714773 25429546 50859092 89003411 101718184 178006822 203436368 292439779 356013644 406872736 584879558 712027288 813745472 1169759116 1424054576 2047078453 2339518232 2848109152 4094156906 4679036464 5696218304 8188313812 9358072928 16376627624 18716145856 32753255248 65506510496 131013020992