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4257292 = 22131931139
BaseRepresentation
bin10000001111011000001100
322000021220111
4100033120030
52042213132
6231125404
751120634
oct20173014
98007814
104257292
112448626
121513864
13b60a10
147cb6c4
15591647
hex40f60c

4257292 has 48 divisors (see below), whose sum is σ = 8780800. Its totient is φ = 1788480.

The previous prime is 4257289. The next prime is 4257313. The reversal of 4257292 is 2927524.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 30559 + ... + 30697.

Almost surely, 24257292 is an apocalyptic number.

It is an amenable number.

4257292 is an abundant number, since it is smaller than the sum of its proper divisors (4523508).

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

4257292 is a wasteful number, since it uses less digits than its factorization.

4257292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 4257292 is about 2063.3206246243. The cubic root of 4257292 is about 162.0731773246.

The spelling of 4257292 in words is "four million, two hundred fifty-seven thousand, two hundred ninety-two".

Divisors: 1 2 4 13 19 26 31 38 52 62 76 124 139 247 278 403 494 556 589 806 988 1178 1612 1807 2356 2641 3614 4309 5282 7228 7657 8618 10564 15314 17236 30628 34333 56017 68666 81871 112034 137332 163742 224068 327484 1064323 2128646 4257292