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56031361 = 1926311213
BaseRepresentation
bin1101010110111…
…1100010000001
310220102200120121
43111233202001
5103321000421
65320540241
71250154511
oct325574201
9126380517
1056031361
11296a0211
1216921681
13b7ba769
147627841
154dbbd41
hex356f881

56031361 has 8 divisors (see below), whose sum is σ = 59209920. Its totient is φ = 52875792.

The previous prime is 56031347. The next prime is 56031373. The reversal of 56031361 is 16313065.

56031361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56031361 - 211 = 56029313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56031761) by changing a digit.

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, 610 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (7401240).

Almost surely, 256031361 is an apocalyptic number.

It is an amenable number.

56031361 is a deficient number, since it is larger than the sum of its proper divisors (3178559).

56031361 is a wasteful number, since it uses less digits than its factorization.

56031361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11495.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 56031361 is about 7485.4098752173. The cubic root of 56031361 is about 382.6576416016.

The spelling of 56031361 in words is "fifty-six million, thirty-one thousand, three hundred sixty-one".

Divisors: 1 19 263 4997 11213 213047 2949019 56031361