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40988960 = 255256181
BaseRepresentation
bin1001110001011…
…1000100100000
32212010110021122
42130113010200
540443121320
64022311412
71005254225
oct234270440
985113248
1040988960
1121156681
1211888568
138651a2c
14562d94c
1538e9d25
hex2717120

40988960 has 24 divisors (see below), whose sum is σ = 96836796. Its totient is φ = 16395520.

The previous prime is 40988957. The next prime is 40988993. The reversal of 40988960 is 6988904.

It can be written as a sum of positive squares in 2 ways, for example, as 38390416 + 2598544 = 6196^2 + 1612^2 .

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, 127931 + ... + 128250.

Almost surely, 240988960 is an apocalyptic number.

40988960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40988960 is an abundant number, since it is smaller than the sum of its proper divisors (55847836).

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

40988960 is a wasteful number, since it uses less digits than its factorization.

40988960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256196 (or 256188 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 40988960 is about 6402.2621002268. The cubic root of 40988960 is about 344.7907714076.

The spelling of 40988960 in words is "forty million, nine hundred eighty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 256181 512362 1024724 1280905 2049448 2561810 4098896 5123620 8197792 10247240 20494480 40988960