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56142072 = 2334712377
BaseRepresentation
bin1101011000101…
…0100011111000
310220122022110000
43112022203320
5103333021242
65323153000
71251125340
oct326124370
9126568400
1056142072
1129766408
1216975760
13b828c7c
147655d20
154ddea4c
hex358a8f8

56142072 has 80 divisors (see below), whose sum is σ = 179728560. Its totient is φ = 16039296.

The previous prime is 56142059. The next prime is 56142089. The reversal of 56142072 is 27024165.

56142072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1653 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (2246607).

Almost surely, 256142072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56142072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89864280).

56142072 is an abundant number, since it is smaller than the sum of its proper divisors (123586488).

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

56142072 is a wasteful number, since it uses less digits than its factorization.

56142072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402 (or 12389 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 56142072 is about 7492.8013452914. The cubic root of 56142072 is about 382.9095037595.

The spelling of 56142072 in words is "fifty-six million, one hundred forty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 252 324 378 504 567 648 756 1134 1512 2268 4536 12377 24754 37131 49508 74262 86639 99016 111393 148524 173278 222786 259917 297048 334179 346556 445572 519834 668358 693112 779751 891144 1002537 1039668 1336716 1559502 2005074 2079336 2339253 2673432 3119004 4010148 4678506 6238008 7017759 8020296 9357012 14035518 18714024 28071036 56142072