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56130542 = 21317312479
BaseRepresentation
bin1101011000011…
…1101111101110
310220121201121222
43112013233232
5103332134132
65323023342
71251046616
oct326075756
9126551558
1056130542
1129758786
121696ab52
13b823950
147651a46
154ddb412
hex3587bee

56130542 has 16 divisors (see below), whose sum is σ = 91203840. Its totient is φ = 25754592.

The previous prime is 56130539. The next prime is 56130589. The reversal of 56130542 is 24503165.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 1742 + ... + 10737.

It is an arithmetic number, because the mean of its divisors is an integer number (5700240).

Almost surely, 256130542 is an apocalyptic number.

56130542 is a deficient number, since it is larger than the sum of its proper divisors (35073298).

56130542 is a wasteful number, since it uses less digits than its factorization.

56130542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12667.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56130542 is about 7492.0319006262. The cubic root of 56130542 is about 382.8832890231.

The spelling of 56130542 in words is "fifty-six million, one hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 13 26 173 346 2249 4498 12479 24958 162227 324454 2158867 4317734 28065271 56130542