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40759240 = 2351018981
BaseRepresentation
bin1001101101111…
…0111111001000
32211200210011111
42123132333020
540413243430
64013340104
71003306414
oct233367710
984623144
1040759240
112100a025
1211797634
1385a12c2
1455add44
1538a1c2a
hex26defc8

40759240 has 16 divisors (see below), whose sum is σ = 91708380. Its totient is φ = 16303680.

The previous prime is 40759231. The next prime is 40759247. The reversal of 40759240 is 4295704.

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 3378244 = 6114^2 + 1838^2 .

It is a super-2 number, since 2×407592402 = 3322631290755200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40759247) 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, 509451 + ... + 509530.

Almost surely, 240759240 is an apocalyptic number.

40759240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40759240 is an abundant number, since it is smaller than the sum of its proper divisors (50949140).

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

40759240 is a wasteful number, since it uses less digits than its factorization.

40759240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018992 (or 1018988 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40759240 is about 6384.2963590360. The cubic root of 40759240 is about 344.1454450765.

The spelling of 40759240 in words is "forty million, seven hundred fifty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1018981 2037962 4075924 5094905 8151848 10189810 20379620 40759240