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34568920 = 235864223
BaseRepresentation
bin1000001111011…
…1101011011000
32102001021122101
42003313223120
532322201140
63232533144
7566555011
oct203675330
972037571
1034568920
1118571161
12b6b11b4
1372147a9
14483c008
15307c99a
hex20f7ad8

34568920 has 16 divisors (see below), whose sum is σ = 77780160. Its totient is φ = 13827552.

The previous prime is 34568917. The next prime is 34568927. The reversal of 34568920 is 2986543.

It is a self number, because there is not a number n which added to its sum of digits gives 34568920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34568927) 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, 432072 + ... + 432151.

It is an arithmetic number, because the mean of its divisors is an integer number (4861260).

Almost surely, 234568920 is an apocalyptic number.

It is an amenable number.

34568920 is an abundant number, since it is smaller than the sum of its proper divisors (43211240).

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

34568920 is a wasteful number, since it uses less digits than its factorization.

34568920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864234 (or 864230 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 34568920 is about 5879.5339951394. The cubic root of 34568920 is about 325.7581354293.

The spelling of 34568920 in words is "thirty-four million, five hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 864223 1728446 3456892 4321115 6913784 8642230 17284460 34568920