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40740946280 = 2351018523657
BaseRepresentation
bin100101111100010110…
…011000000101101000
310220011022021111201022
4211330112120011220
51131414140240110
630414403512012
72641412221016
oct457426300550
9126138244638
1040740946280
1116307224a41
127a90088608
133ac372a108
141d86b638b6
1510d6a96755
hex97c598168

40740946280 has 16 divisors (see below), whose sum is σ = 91667129220. Its totient is φ = 16296378496.

The previous prime is 40740946273. The next prime is 40740946291. The reversal of 40740946280 is 8264904704.

It can be written as a sum of positive squares in 2 ways, for example, as 37968081316 + 2772864964 = 194854^2 + 52658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509261789 + ... + 509261868.

Almost surely, 240740946280 is an apocalyptic number.

40740946280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40740946280 is an abundant number, since it is smaller than the sum of its proper divisors (50926182940).

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

40740946280 is a wasteful number, since it uses less digits than its factorization.

40740946280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018523668 (or 1018523664 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 40740946280 in words is "forty billion, seven hundred forty million, nine hundred forty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1018523657 2037047314 4074094628 5092618285 8148189256 10185236570 20370473140 40740946280