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56202720 = 2535743389
BaseRepresentation
bin1101011001100…
…1010111100000
310220202101122020
43112121113200
5103341441340
65324341440
71251500220
oct326312740
9126671566
1056202720
11297a7a32
12169a4880
13b84a762
147670080
154e029d0
hex35995e0

56202720 has 192 divisors, whose sum is σ = 207567360. Its totient is φ = 12515328.

The previous prime is 56202719. The next prime is 56202739. The reversal of 56202720 is 2720265.

56202720 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 (24).

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 31 ways as a sum of consecutive naturals, for example, 144286 + ... + 144674.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 256202720 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 56202720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103783680).

56202720 is an abundant number, since it is smaller than the sum of its proper divisors (151364640).

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

56202720 is a wasteful number, since it uses less digits than its factorization.

56202720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 56202720 is about 7496.8473373812. The cubic root of 56202720 is about 383.0473346683.

Adding to 56202720 its reverse (2720265), we get a palindrome (58922985).

The spelling of 56202720 in words is "fifty-six million, two hundred two thousand, seven hundred twenty".