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74985125 = 533137523
BaseRepresentation
bin1000111100000…
…10111010100101
312020002122020212
410132002322211
5123144011000
611235105205
71600235345
oct436027245
9166078225
1074985125
1139366486
1221142205
13126c58c7
149d5cd25
1568b2c35
hex4782ea5

74985125 has 32 divisors (see below), whose sum is σ = 99400704. Its totient is φ = 56376000.

The previous prime is 74985109. The next prime is 74985139. The reversal of 74985125 is 52158947.

It is not a de Polignac number, because 74985125 - 24 = 74985109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 143114 + ... + 143636.

It is an arithmetic number, because the mean of its divisors is an integer number (3106272).

Almost surely, 274985125 is an apocalyptic number.

It is an amenable number.

74985125 is a deficient number, since it is larger than the sum of its proper divisors (24415579).

74985125 is a wasteful number, since it uses less digits than its factorization.

74985125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 596 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 74985125 is about 8659.3951867322. The cubic root of 74985125 is about 421.6884506722.

The spelling of 74985125 in words is "seventy-four million, nine hundred eighty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 31 37 125 155 185 523 775 925 1147 2615 3875 4625 5735 13075 16213 19351 28675 65375 81065 96755 143375 405325 483775 599881 2026625 2418875 2999405 14997025 74985125