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56213142 = 2313197103
BaseRepresentation
bin1101011001101…
…1111010010110
310220202220221020
43112123322112
5103342310032
65324502010
71251542466
oct326337226
9126686836
1056213142
1129804847
12169aa906
13b85241b
147673ba6
154e05b2c
hex359be96

56213142 has 16 divisors (see below), whose sum is σ = 112527360. Its totient is φ = 18720872.

The previous prime is 56213141. The next prime is 56213159. The reversal of 56213142 is 24131265.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56213141) 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, 4363 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (7032960).

Almost surely, 256213142 is an apocalyptic number.

56213142 is an abundant number, since it is smaller than the sum of its proper divisors (56314218).

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

56213142 is a wasteful number, since it uses less digits than its factorization.

56213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427.

The product of its digits is 1440, while the sum is 24.

The square root of 56213142 is about 7497.5423973459. The cubic root of 56213142 is about 383.0710101096.

The spelling of 56213142 in words is "fifty-six million, two hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 1319 2638 3957 7103 7914 14206 21309 42618 9368857 18737714 28106571 56213142