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42931750761 = 332213718511
BaseRepresentation
bin100111111110111011…
…101000011101101001
311002210222122220111000
4213332323220131221
51200411012011021
631420024225213
73046613601054
oct477673503551
9132728586430
1042931750761
1117230943859
1283a190b209
13408258c123
142113ac9a9b
1511b4098b26
hex9feee8769

42931750761 has 16 divisors (see below), whose sum is σ = 63631422720. Its totient is φ = 28608194160.

The previous prime is 42931750723. The next prime is 42931750769. The reversal of 42931750761 is 16705713924.

42931750761 is a `hidden beast` number, since 42 + 93 + 17 + 507 + 6 + 1 = 666.

It is not a de Polignac number, because 42931750761 - 210 = 42931749737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42931750769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299505 + ... + 419006.

It is an arithmetic number, because the mean of its divisors is an integer number (3976963920).

Almost surely, 242931750761 is an apocalyptic number.

It is an amenable number.

42931750761 is a deficient number, since it is larger than the sum of its proper divisors (20699671959).

42931750761 is a wasteful number, since it uses less digits than its factorization.

42931750761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720733 (or 720727 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 42931750761 in words is "forty-two billion, nine hundred thirty-one million, seven hundred fifty thousand, seven hundred sixty-one".

Divisors: 1 3 9 27 2213 6639 19917 59751 718511 2155533 6466599 19399797 1590064843 4770194529 14310583587 42931750761