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20256352 = 255910729
BaseRepresentation
bin100110101000…
…1011001100000
31102010010111021
41031101121200
520141200402
62002055224
7334114264
oct115213140
942103437
1020256352
1110485996
12694a514
13427300c
1429940a4
151ba1d37
hex1351660

20256352 has 24 divisors (see below), whose sum is σ = 40559400. Its totient is φ = 9955584.

The previous prime is 20256349. The next prime is 20256359. The reversal of 20256352 is 25365202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20256359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3477 + ... + 7252.

It is an arithmetic number, because the mean of its divisors is an integer number (1689975).

Almost surely, 220256352 is an apocalyptic number.

It is an amenable number.

20256352 is an abundant number, since it is smaller than the sum of its proper divisors (20303048).

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

20256352 is a wasteful number, since it uses less digits than its factorization.

20256352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798 (or 10790 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20256352 is about 4500.7057224395. The cubic root of 20256352 is about 272.5965855751.

The spelling of 20256352 in words is "twenty million, two hundred fifty-six thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 32 59 118 236 472 944 1888 10729 21458 42916 85832 171664 343328 633011 1266022 2532044 5064088 10128176 20256352