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75504125 = 531374409
BaseRepresentation
bin1001000000000…
…01100111111101
312021002000012002
410200001213331
5123312113000
611254152045
71604526434
oct440014775
9167060162
1075504125
1139690404
1221352625
1312847bc8
14a05611b
1569668d5
hex48019fd

75504125 has 16 divisors (see below), whose sum is σ = 94938480. Its totient is φ = 59948800.

The previous prime is 75504103. The next prime is 75504151. The reversal of 75504125 is 52140557.

It can be written as a sum of positive squares in 8 ways, for example, as 40018276 + 35485849 = 6326^2 + 5957^2 .

It is not a de Polignac number, because 75504125 - 224 = 58726909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14921 + ... + 19329.

It is an arithmetic number, because the mean of its divisors is an integer number (5933655).

Almost surely, 275504125 is an apocalyptic number.

It is an amenable number.

75504125 is a deficient number, since it is larger than the sum of its proper divisors (19434355).

75504125 is a wasteful number, since it uses less digits than its factorization.

75504125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4551 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 75504125 is about 8689.3109623261. The cubic root of 75504125 is about 422.6591023396.

The spelling of 75504125 in words is "seventy-five million, five hundred four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 137 685 3425 4409 17125 22045 110225 551125 604033 3020165 15100825 75504125