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75401056 = 255939937
BaseRepresentation
bin1000111111010…
…00011101100000
312020212202210201
410133220131200
5123300313211
611252034544
71603620103
oct437503540
9166782721
1075401056
113961aa25
1221302a54
1312810013
14a02a73a
1569460c1
hex47e8760

75401056 has 24 divisors (see below), whose sum is σ = 150965640. Its totient is φ = 37060608.

The previous prime is 75401023. The next prime is 75401057. The reversal of 75401056 is 65010457.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75401057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18081 + ... + 21856.

It is an arithmetic number, because the mean of its divisors is an integer number (6290235).

Almost surely, 275401056 is an apocalyptic number.

It is an amenable number.

75401056 is an abundant number, since it is smaller than the sum of its proper divisors (75564584).

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

75401056 is a wasteful number, since it uses less digits than its factorization.

75401056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40006 (or 39998 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 75401056 is about 8683.3781444781. The cubic root of 75401056 is about 422.4666939188.

The spelling of 75401056 in words is "seventy-five million, four hundred one thousand, fifty-six".

Divisors: 1 2 4 8 16 32 59 118 236 472 944 1888 39937 79874 159748 319496 638992 1277984 2356283 4712566 9425132 18850264 37700528 75401056