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40930578 = 23213174917
BaseRepresentation
bin1001110000100…
…0110100010010
32212000111012100
42130020310102
540434234303
64021141230
71004622063
oct234106422
985014170
1040930578
1121116827
121185a816
1386312a0
14561656a
1538d78a3
hex2708d12

40930578 has 24 divisors (see below), whose sum is σ = 95505228. Its totient is φ = 12593952.

The previous prime is 40930567. The next prime is 40930583. The reversal of 40930578 is 87503904.

It can be written as a sum of positive squares in 2 ways, for example, as 39350529 + 1580049 = 6273^2 + 1257^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87225 + ... + 87692.

Almost surely, 240930578 is an apocalyptic number.

40930578 is an abundant number, since it is smaller than the sum of its proper divisors (54574650).

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

40930578 is a wasteful number, since it uses less digits than its factorization.

40930578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174938 (or 174935 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40930578 is about 6397.7009933256. The cubic root of 40930578 is about 344.6269944665.

The spelling of 40930578 in words is "forty million, nine hundred thirty thousand, five hundred seventy-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 174917 349834 524751 1049502 1574253 2273921 3148506 4547842 6821763 13643526 20465289 40930578