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75690252 = 223211191137
BaseRepresentation
bin1001000001011…
…11000100001100
312021102110111200
410200233010030
5123334042002
611302145500
71606233201
oct440570414
9167373450
1075690252
11397a8230
1221422290
13128b1841
14a0a3ca8
1569a1b1c
hex482f10c

75690252 has 36 divisors (see below), whose sum is σ = 208722696. Its totient is φ = 22936320.

The previous prime is 75690233. The next prime is 75690253. The reversal of 75690252 is 25209657.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (75690253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95173 + ... + 95964.

Almost surely, 275690252 is an apocalyptic number.

It is an amenable number.

75690252 is an abundant number, since it is smaller than the sum of its proper divisors (133032444).

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

75690252 is a wasteful number, since it uses less digits than its factorization.

75690252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191158 (or 191153 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 75690252 is about 8700.0144827466. The cubic root of 75690252 is about 423.0061196573.

The spelling of 75690252 in words is "seventy-five million, six hundred ninety thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 191137 382274 573411 764548 1146822 1720233 2102507 2293644 3440466 4205014 6307521 6880932 8410028 12615042 18922563 25230084 37845126 75690252