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561462568 = 23233782471
BaseRepresentation
bin100001011101110…
…011110100101000
31110010111020211221
4201131303310220
52122213300233
6131414031424
716625232052
oct4135636450
91403436757
10561462568
11268a27157
12138048574
138c424994
14547d48d2
153445942d
hex21773d28

561462568 has 32 divisors (see below), whose sum is σ = 1128216960. Its totient is φ = 261264960.

The previous prime is 561462563. The next prime is 561462571. The reversal of 561462568 is 865264165.

561462568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (561462563) 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, 34428 + ... + 48043.

It is an arithmetic number, because the mean of its divisors is an integer number (35256780).

Almost surely, 2561462568 is an apocalyptic number.

It is an amenable number.

561462568 is an abundant number, since it is smaller than the sum of its proper divisors (566754392).

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

561462568 is a wasteful number, since it uses less digits than its factorization.

561462568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82537 (or 82533 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 561462568 is about 23695.2013707417. The cubic root of 561462568 is about 824.9740147310.

The spelling of 561462568 in words is "five hundred sixty-one million, four hundred sixty-two thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 23 37 46 74 92 148 184 296 851 1702 3404 6808 82471 164942 329884 659768 1896833 3051427 3793666 6102854 7587332 12205708 15174664 24411416 70182821 140365642 280731284 561462568