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20264304 = 2431572689
BaseRepresentation
bin100110101001…
…1010101110000
31102010112101210
41031103111300
520141424204
62002200120
7334146414
oct115232560
942115353
1020264304
1110490965
126953040
134276818
142996d44
151ba4389
hex1353570

20264304 has 40 divisors (see below), whose sum is σ = 52702480. Its totient is φ = 6709248.

The previous prime is 20264303. The next prime is 20264339. The reversal of 20264304 is 40346202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6192 + ... + 8880.

It is an arithmetic number, because the mean of its divisors is an integer number (1317562).

Almost surely, 220264304 is an apocalyptic number.

20264304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20264304 is an abundant number, since it is smaller than the sum of its proper divisors (32438176).

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

20264304 is a wasteful number, since it uses less digits than its factorization.

20264304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20264304 is about 4501.5890527679. The cubic root of 20264304 is about 272.6322518269.

The spelling of 20264304 in words is "twenty million, two hundred sixty-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 48 157 314 471 628 942 1256 1884 2512 2689 3768 5378 7536 8067 10756 16134 21512 32268 43024 64536 129072 422173 844346 1266519 1688692 2533038 3377384 5066076 6754768 10132152 20264304