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75131164 = 22371493407
BaseRepresentation
bin1000111101001…
…10100100011100
312020101001120201
410132212210130
5123213144124
611242153244
71601414203
oct436464434
9166331521
1075131164
1139456179
12211b2824
1312747214
149d9a23a
1568e1144
hex47a691c

75131164 has 24 divisors (see below), whose sum is σ = 135979200. Its totient is φ = 36294336.

The previous prime is 75131159. The next prime is 75131167. The reversal of 75131164 is 46113157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75131167) 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 7 ways as a sum of consecutive naturals, for example, 20349 + ... + 23755.

It is an arithmetic number, because the mean of its divisors is an integer number (5665800).

Almost surely, 275131164 is an apocalyptic number.

75131164 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

75131164 is a deficient number, since it is larger than the sum of its proper divisors (60848036).

75131164 is a wasteful number, since it uses less digits than its factorization.

75131164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 75131164 is about 8667.8234868968. The cubic root of 75131164 is about 421.9620294819.

The spelling of 75131164 in words is "seventy-five million, one hundred thirty-one thousand, one hundred sixty-four".

Divisors: 1 2 4 37 74 148 149 298 596 3407 5513 6814 11026 13628 22052 126059 252118 504236 507643 1015286 2030572 18782791 37565582 75131164