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74563225 = 521121572
BaseRepresentation
bin1000111000110…
…11111010011001
312012022012111221
410130123322121
5123042010400
611222052041
71563530332
oct434337231
9165265457
1074563225
11390a8500
1220b7a021
13125a8869
149c8d289
15682cc1a
hex471be99

74563225 has 27 divisors (see below), whose sum is σ = 102279261. Its totient is φ = 53882400.

The previous prime is 74563219. The next prime is 74563249. The reversal of 74563225 is 52236547.

The square root of 74563225 is 8635.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9018009 + 65545216 = 3003^2 + 8096^2 .

It is not a de Polignac number, because 74563225 - 211 = 74561177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 474847 + ... + 475003.

Almost surely, 274563225 is an apocalyptic number.

74563225 is the 8635-th square number.

74563225 is the 4318-th centered octagonal number.

It is an amenable number.

74563225 is a deficient number, since it is larger than the sum of its proper divisors (27716036).

74563225 is a wasteful number, since it uses less digits than its factorization.

74563225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 173 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The cubic root of 74563225 is about 420.8960932008.

The spelling of 74563225 in words is "seventy-four million, five hundred sixty-three thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 121 157 275 605 785 1727 3025 3925 8635 18997 24649 43175 94985 123245 271139 474925 616225 1355695 2982529 6778475 14912645 74563225