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131630037768 = 23333491746127
BaseRepresentation
bin111101010010111000…
…0101111101100001000
3110120202112010202002000
41322211300233230020
54124034242202033
6140245304311000
712336625601025
oct1724560575410
9416675122060
10131630037768
11509077a7689
1221616772460
13c5497c6818
146529b7c54c
153655ee7a13
hex1ea5c2fb08

131630037768 has 64 divisors (see below), whose sum is σ = 366686880000. Its totient is φ = 43750933056.

The previous prime is 131630037761. The next prime is 131630037769. The reversal of 131630037768 is 867730036131.

It is a happy number.

131630037768 is a `hidden beast` number, since 1 + 3 + 1 + 630 + 0 + 3 + 7 + 7 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (131630037761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797680 + ... + 948447.

It is an arithmetic number, because the mean of its divisors is an integer number (5729482500).

Almost surely, 2131630037768 is an apocalyptic number.

131630037768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131630037768 is an abundant number, since it is smaller than the sum of its proper divisors (235056842232).

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

131630037768 is a wasteful number, since it uses less digits than its factorization.

131630037768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746491 (or 1746481 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 131630037768 in words is "one hundred thirty-one billion, six hundred thirty million, thirty-seven thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 349 698 1047 1396 2094 2792 3141 4188 6282 8376 9423 12564 18846 25128 37692 75384 1746127 3492254 5238381 6984508 10476762 13969016 15715143 20953524 31430286 41907048 47145429 62860572 94290858 125721144 188581716 377163432 609398323 1218796646 1828194969 2437593292 3656389938 4875186584 5484584907 7312779876 10969169814 14625559752 16453754721 21938339628 32907509442 43876679256 65815018884 131630037768