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75725132 = 2272704469
BaseRepresentation
bin1001000001101…
…11100101001100
312021111020100112
410200313211030
5123341201012
611303015152
71606436660
oct440674514
9167436315
1075725132
113982145a
122143a4b8
13128c4692
14a0b28a0
1569ac122
hex483794c

75725132 has 12 divisors (see below), whose sum is σ = 151450320. Its totient is φ = 32453616.

The previous prime is 75725129. The next prime is 75725137. The reversal of 75725132 is 23152757.

75725132 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (75725137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352207 + ... + 1352262.

It is an arithmetic number, because the mean of its divisors is an integer number (12620860).

Almost surely, 275725132 is an apocalyptic number.

It is an amenable number.

75725132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

75725132 is a wasteful number, since it uses less digits than its factorization.

75725132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704480 (or 2704478 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 75725132 is about 8702.0188462218. The cubic root of 75725132 is about 423.0710870176.

Adding to 75725132 its reverse (23152757), we get a palindrome (98877889).

It can be divided in two parts, 75725 and 132, that added together give a palindrome (75857).

The spelling of 75725132 in words is "seventy-five million, seven hundred twenty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 2704469 5408938 10817876 18931283 37862566 75725132