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56889133 = 727129989
BaseRepresentation
bin1101100100000…
…0111100101101
310222001021012221
43121000330231
5104030423013
65351155341
71260356350
oct331007455
9128037187
1056889133
112a126714
1217075b51
13ba2b012
1477ac297
154edb08d
hex3640f2d

56889133 has 8 divisors (see below), whose sum is σ = 65258240. Its totient is φ = 48580560.

The previous prime is 56889121. The next prime is 56889139. The reversal of 56889133 is 33198865.

56889133 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 not a de Polignac number, because 56889133 - 25 = 56889101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56889133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56889139) 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, 13098 + ... + 16891.

It is an arithmetic number, because the mean of its divisors is an integer number (8157280).

Almost surely, 256889133 is an apocalyptic number.

It is an amenable number.

56889133 is a deficient number, since it is larger than the sum of its proper divisors (8369107).

56889133 is a wasteful number, since it uses less digits than its factorization.

56889133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30267.

The product of its digits is 155520, while the sum is 43.

The square root of 56889133 is about 7542.4885150725. The cubic root of 56889133 is about 384.6004355226.

The spelling of 56889133 in words is "fifty-six million, eight hundred eighty-nine thousand, one hundred thirty-three".

Divisors: 1 7 271 1897 29989 209923 8127019 56889133