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56328020 = 2257402343
BaseRepresentation
bin1101011011011…
…1111101010100
310220222202111222
43112313331110
5103404444040
65331145512
71252531430
oct326677524
9126882458
1056328020
1129883091
1216a45298
13b8927b8
1476a39c0
154e29bb5
hex35b7f54

56328020 has 24 divisors (see below), whose sum is σ = 135187584. Its totient is φ = 19312416.

The previous prime is 56328017. The next prime is 56328031. The reversal of 56328020 is 2082365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201032 + ... + 201311.

It is an arithmetic number, because the mean of its divisors is an integer number (5632816).

Almost surely, 256328020 is an apocalyptic number.

It is an amenable number.

56328020 is an abundant number, since it is smaller than the sum of its proper divisors (78859564).

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

56328020 is a wasteful number, since it uses less digits than its factorization.

56328020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402359 (or 402357 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56328020 is about 7505.1995309918. The cubic root of 56328020 is about 383.3317823924.

The spelling of 56328020 in words is "fifty-six million, three hundred twenty-eight thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 402343 804686 1609372 2011715 2816401 4023430 5632802 8046860 11265604 14082005 28164010 56328020