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674804529 = 327212372
BaseRepresentation
bin101000001110001…
…011001100110001
31202000202121210100
4220032023030301
52340222221104
6150543223013
722502513100
oct5016131461
91660677710
10674804529
11316a006a3
12169ba7a69
13a9a5a229
146589a037
153e397139
hex2838b331

674804529 has 27 divisors (see below), whose sum is σ = 1134772587. Its totient is φ = 385290864.

The previous prime is 674804453. The next prime is 674804531. The reversal of 674804529 is 925408476.

It is a happy number.

The square root of 674804529 is 25977.

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

It can be written as a sum of positive squares in only one way, i.e., 509630625 + 165173904 = 22575^2 + 12852^2 .

It is not a de Polignac number, because 674804529 - 27 = 674804401 is a prime.

It is a super-2 number, since 2×6748045292 = 910722304717823682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (674804549) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 544899 + ... + 546135.

Almost surely, 2674804529 is an apocalyptic number.

674804529 is the 25977-th square number.

674804529 is the 12989-th centered octagonal number.

It is an amenable number.

674804529 is a deficient number, since it is larger than the sum of its proper divisors (459968058).

674804529 is an equidigital number, since it uses as much as digits as its factorization.

674804529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The cubic root of 674804529 is about 877.1206376339.

The spelling of 674804529 in words is "six hundred seventy-four million, eight hundred four thousand, five hundred twenty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 1237 3711 8659 11133 25977 60613 77931 181839 545517 1530169 4590507 10711183 13771521 32133549 74978281 96400647 224934843 674804529