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561416072 = 23710025287
BaseRepresentation
bin100001011101101…
…000011110001000
31110010101220001212
4201131220132020
52122210303242
6131413032252
716624646360
oct4135503610
91403356055
10561416072
112689a5228
12138025688
138c409779
14547c19a0
153444a782
hex21768788

561416072 has 16 divisors (see below), whose sum is σ = 1203034560. Its totient is φ = 240606864.

The previous prime is 561416071. The next prime is 561416077. The reversal of 561416072 is 270614165.

It is not an unprimeable number, because it can be changed into a prime (561416071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012588 + ... + 5012699.

It is an arithmetic number, because the mean of its divisors is an integer number (75189660).

Almost surely, 2561416072 is an apocalyptic number.

It is an amenable number.

561416072 is an abundant number, since it is smaller than the sum of its proper divisors (641618488).

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

561416072 is a wasteful number, since it uses less digits than its factorization.

561416072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025300 (or 10025296 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 561416072 is about 23694.2202235060. The cubic root of 561416072 is about 824.9512414404.

The spelling of 561416072 in words is "five hundred sixty-one million, four hundred sixteen thousand, seventy-two".

Divisors: 1 2 4 7 8 14 28 56 10025287 20050574 40101148 70177009 80202296 140354018 280708036 561416072