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75256872 = 23319165037
BaseRepresentation
bin1000111110001…
…01010000101000
312020121110000120
410133011100220
5123231204442
611245003240
71602446535
oct437052050
9166543016
1075256872
1139531669
1221253520
131278c4c2
149dcdd8c
1569184ec
hex47c5428

75256872 has 32 divisors (see below), whose sum is σ = 198045600. Its totient is φ = 23765184.

The previous prime is 75256843. The next prime is 75256877. The reversal of 75256872 is 27865257.

It is not an unprimeable number, because it can be changed into a prime (75256877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82063 + ... + 82974.

It is an arithmetic number, because the mean of its divisors is an integer number (6188925).

Almost surely, 275256872 is an apocalyptic number.

It is an amenable number.

75256872 is an abundant number, since it is smaller than the sum of its proper divisors (122788728).

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

75256872 is a wasteful number, since it uses less digits than its factorization.

75256872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165065 (or 165061 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 75256872 is about 8675.0718729011. The cubic root of 75256872 is about 422.1972378978.

The spelling of 75256872 in words is "seventy-five million, two hundred fifty-six thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 165037 330074 495111 660148 990222 1320296 1980444 3135703 3960888 6271406 9407109 12542812 18814218 25085624 37628436 75256872