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56020278 = 23711071229
BaseRepresentation
bin1101010110110…
…0110100110110
310220102010101010
43111230310312
5103320122103
65320413050
71250110266
oct325546466
9126363333
1056020278
1129692956
1216917186
13b7b56c2
1476237a6
154db8903
hex356cd36

56020278 has 32 divisors (see below), whose sum is σ = 114773760. Its totient is φ = 18223520.

The previous prime is 56020247. The next prime is 56020297. The reversal of 56020278 is 87202065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44968 + ... + 46196.

It is an arithmetic number, because the mean of its divisors is an integer number (3586680).

Almost surely, 256020278 is an apocalyptic number.

56020278 is an abundant number, since it is smaller than the sum of its proper divisors (58753482).

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

56020278 is a wasteful number, since it uses less digits than its factorization.

56020278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56020278 is about 7484.6695317829. The cubic root of 56020278 is about 382.6324100513.

The spelling of 56020278 in words is "fifty-six million, twenty thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 71 107 142 213 214 321 426 642 1229 2458 3687 7374 7597 15194 22791 45582 87259 131503 174518 261777 263006 394509 523554 789018 9336713 18673426 28010139 56020278