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56020120 = 2351328287
BaseRepresentation
bin1101010110110…
…0110010011000
310220102010011021
43111230302120
5103320120440
65320412224
71250106652
oct325546230
9126363137
1056020120
1129692822
1216917074
13b7b5600
1476236d2
154db884a
hex356cc98

56020120 has 48 divisors (see below), whose sum is σ = 136503360. Its totient is φ = 20681856.

The previous prime is 56020091. The next prime is 56020177. The reversal of 56020120 is 2102065.

It is a happy number.

56020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56020094 and 56020103.

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 11 ways as a sum of consecutive naturals, for example, 2617 + ... + 10903.

It is an arithmetic number, because the mean of its divisors is an integer number (2843820).

Almost surely, 256020120 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 56020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68251680).

56020120 is an abundant number, since it is smaller than the sum of its proper divisors (80483240).

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

56020120 is a wasteful number, since it uses less digits than its factorization.

56020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324 (or 8307 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 56020120 is about 7484.6589768673. The cubic root of 56020120 is about 382.6320503246.

Adding to 56020120 its reverse (2102065), we get a palindrome (58122185).

The spelling of 56020120 in words is "fifty-six million, twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 169 260 338 520 676 845 1352 1690 3380 6760 8287 16574 33148 41435 66296 82870 107731 165740 215462 331480 430924 538655 861848 1077310 1400503 2154620 2801006 4309240 5602012 7002515 11204024 14005030 28010060 56020120