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75725901 = 333190473
BaseRepresentation
bin1001000001101…
…11110001001101
312021111021102000
410200313301031
5123341212101
611303022513
71606442136
oct440676115
9167437360
1075725901
1139821a99
122143aa39
13128c4b34
14a0b2c8d
1569ac486
hex4837c4d

75725901 has 16 divisors (see below), whose sum is σ = 115806720. Its totient is φ = 48854880.

The previous prime is 75725899. The next prime is 75725929. The reversal of 75725901 is 10952757.

It is not a de Polignac number, because 75725901 - 21 = 75725899 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75725981) 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 15 ways as a sum of consecutive naturals, for example, 44400 + ... + 46073.

It is an arithmetic number, because the mean of its divisors is an integer number (7237920).

Almost surely, 275725901 is an apocalyptic number.

It is an amenable number.

75725901 is a deficient number, since it is larger than the sum of its proper divisors (40080819).

75725901 is a wasteful number, since it uses less digits than its factorization.

75725901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90513 (or 90507 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 75725901 is about 8702.0630312587. The cubic root of 75725901 is about 423.0725191294.

The spelling of 75725901 in words is "seventy-five million, seven hundred twenty-five thousand, nine hundred one".

Divisors: 1 3 9 27 31 93 279 837 90473 271419 814257 2442771 2804663 8413989 25241967 75725901