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75242004 = 2236270167
BaseRepresentation
bin1000111110000…
…01101000010100
312020120200121220
410133001220110
5123230221004
611244410340
71602355305
oct437015024
9166520556
1075242004
1139521482
12212469b0
13127857c6
149dc87ac
156913dd9
hex47c1a14

75242004 has 12 divisors (see below), whose sum is σ = 175564704. Its totient is φ = 25080664.

The previous prime is 75242003. The next prime is 75242023. The reversal of 75242004 is 40024257.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×752420042 = 11322718331872032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75242003) 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 3 ways as a sum of consecutive naturals, for example, 3135072 + ... + 3135095.

It is an arithmetic number, because the mean of its divisors is an integer number (14630392).

Almost surely, 275242004 is an apocalyptic number.

It is an amenable number.

75242004 is an abundant number, since it is smaller than the sum of its proper divisors (100322700).

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

75242004 is a wasteful number, since it uses less digits than its factorization.

75242004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270174 (or 6270172 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 75242004 is about 8674.2148924269. The cubic root of 75242004 is about 422.1694324993.

The spelling of 75242004 in words is "seventy-five million, two hundred forty-two thousand, four".

Divisors: 1 2 3 4 6 12 6270167 12540334 18810501 25080668 37621002 75242004