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56031456 = 253131719139
BaseRepresentation
bin1101010110111…
…1100011100000
310220102200201010
43111233203200
5103321001311
65320540520
71250155005
oct325574340
9126380633
1056031456
11296a0298
1216921740
13b7ba810
1476278ac
154dbbda6
hex356f8e0

56031456 has 192 divisors, whose sum is σ = 177811200. Its totient is φ = 15261696.

The previous prime is 56031433. The next prime is 56031457. The reversal of 56031456 is 65413065.

It is a super-2 number, since 2×560314562 = 6279048122959872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56031457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403035 + ... + 403173.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 256031456 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 56031456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88905600).

56031456 is an abundant number, since it is smaller than the sum of its proper divisors (121779744).

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

56031456 is a wasteful number, since it uses less digits than its factorization.

56031456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56031456 is about 7485.4162208925. The cubic root of 56031456 is about 382.6578578641.

The spelling of 56031456 in words is "fifty-six million, thirty-one thousand, four hundred fifty-six".