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40492960 = 255253081
BaseRepresentation
bin1001101001110…
…1111110100000
32211012020220021
42122131332200
540331233320
64003523224
71001120164
oct232357640
984166807
1040492960
1120947a62
1211689514
13850a041
145540ca4
15384cdaa
hex269dfa0

40492960 has 24 divisors (see below), whose sum is σ = 95664996. Its totient is φ = 16197120.

The previous prime is 40492957. The next prime is 40492967. The reversal of 40492960 is 6929404.

It can be written as a sum of positive squares in 2 ways, for example, as 34904464 + 5588496 = 5908^2 + 2364^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40492967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126381 + ... + 126700.

Almost surely, 240492960 is an apocalyptic number.

40492960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40492960 is an abundant number, since it is smaller than the sum of its proper divisors (55172036).

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

40492960 is a wasteful number, since it uses less digits than its factorization.

40492960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253096 (or 253088 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 40492960 is about 6363.4078920025. The cubic root of 40492960 is about 343.3943733703.

The spelling of 40492960 in words is "forty million, four hundred ninety-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 253081 506162 1012324 1265405 2024648 2530810 4049296 5061620 8098592 10123240 20246480 40492960