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75800225 = 525935113
BaseRepresentation
bin1001000010010…
…01111010100001
312021122001100202
410201021322201
5123401101400
611304354545
71610201624
oct441117241
9167561322
1075800225
1139872916
1221475a55
131291c907
14a0d1dbb
1569c44d5
hex4849ea1

75800225 has 12 divisors (see below), whose sum is σ = 94169196. Its totient is φ = 60526080.

The previous prime is 75800213. The next prime is 75800227. The reversal of 75800225 is 52200857.

It can be written as a sum of positive squares in 6 ways, for example, as 13010449 + 62789776 = 3607^2 + 7924^2 .

It is not a de Polignac number, because 75800225 - 218 = 75538081 is a prime.

It is a super-2 number, since 2×758002252 = 11491348220101250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75800227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12269 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (7847433).

Almost surely, 275800225 is an apocalyptic number.

It is an amenable number.

75800225 is a deficient number, since it is larger than the sum of its proper divisors (18368971).

75800225 is a wasteful number, since it uses less digits than its factorization.

75800225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716 (or 5711 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 75800225 is about 8706.3324655104. The cubic root of 75800225 is about 423.2108872864.

The spelling of 75800225 in words is "seventy-five million, eight hundred thousand, two hundred twenty-five".

Divisors: 1 5 25 593 2965 5113 14825 25565 127825 3032009 15160045 75800225