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75031164 = 22331353441
BaseRepresentation
bin1000111100011…
…10001001111100
312020011222102000
410132032021330
5123201444124
611240102300
71600516515
oct436161174
9166158360
1075031164
113939802a
1221164990
1312710850
149d71a0c
1568c16c9
hex478e27c

75031164 has 48 divisors (see below), whose sum is σ = 209492640. Its totient is φ = 23086080.

The previous prime is 75031157. The next prime is 75031169. The reversal of 75031164 is 46113057.

It is a super-3 number, since 3×750311643 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75031169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25317 + ... + 28124.

It is an arithmetic number, because the mean of its divisors is an integer number (4364430).

Almost surely, 275031164 is an apocalyptic number.

It is an amenable number.

75031164 is an abundant number, since it is smaller than the sum of its proper divisors (134461476).

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

75031164 is a wasteful number, since it uses less digits than its factorization.

75031164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53467 (or 53459 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 75031164 is about 8662.0531053556. The cubic root of 75031164 is about 421.7747350860.

The spelling of 75031164 in words is "seventy-five million, thirty-one thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 53441 106882 160323 213764 320646 480969 641292 694733 961938 1389466 1442907 1923876 2084199 2778932 2885814 4168398 5771628 6252597 8336796 12505194 18757791 25010388 37515582 75031164