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56145460 = 2257401039
BaseRepresentation
bin1101011000101…
…1011000110100
310220122111002111
43112023120310
5103333123320
65323220404
71251141250
oct326133064
9126574074
1056145460
1129768a08
1216977704
13b82a687
147657260
154de0a5a
hex358b634

56145460 has 24 divisors (see below), whose sum is σ = 134749440. Its totient is φ = 19249824.

The previous prime is 56145449. The next prime is 56145491. The reversal of 56145460 is 6454165.

56145460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561454602 = 6304625357223200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 200380 + ... + 200659.

It is an arithmetic number, because the mean of its divisors is an integer number (5614560).

Almost surely, 256145460 is an apocalyptic number.

It is an amenable number.

56145460 is an abundant number, since it is smaller than the sum of its proper divisors (78603980).

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

56145460 is a wasteful number, since it uses less digits than its factorization.

56145460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401055 (or 401053 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 56145460 is about 7493.0274255470. The cubic root of 56145460 is about 382.9172060717.

The spelling of 56145460 in words is "fifty-six million, one hundred forty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 401039 802078 1604156 2005195 2807273 4010390 5614546 8020780 11229092 14036365 28072730 56145460