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40794056290 = 25131718458849
BaseRepresentation
bin100101111111100000…
…111110011001100010
310220022000012202221201
4211333200332121202
51132021234300130
630423542111414
72642625520501
oct457740763142
9126260182851
1040794056290
11163341aa309
127aa5a1b56a
133b01733c60
141d8dc2a838
1510db587bca
hex97f83e662

40794056290 has 32 divisors (see below), whose sum is σ = 83729343600. Its totient is φ = 14176395264.

The previous prime is 40794056279. The next prime is 40794056291. The reversal of 40794056290 is 9265049704.

It can be written as a sum of positive squares in 8 ways, for example, as 19360217881 + 21433838409 = 139141^2 + 146403^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40794056290.

It is not an unprimeable number, because it can be changed into a prime (40794056291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9227215 + ... + 9231634.

Almost surely, 240794056290 is an apocalyptic number.

40794056290 is an abundant number, since it is smaller than the sum of its proper divisors (42935287310).

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

40794056290 is a wasteful number, since it uses less digits than its factorization.

40794056290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18458886.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 40794056290 in words is "forty billion, seven hundred ninety-four million, fifty-six thousand, two hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 18458849 36917698 92294245 184588490 239965037 313800433 479930074 627600866 1199825185 1569002165 2399650370 3138004330 4079405629 8158811258 20397028145 40794056290