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56787053 = 200328351
BaseRepresentation
bin1101100010100…
…0000001101101
310221212002012012
43120220001231
5104014141203
65345051005
71256452631
oct330500155
9127762165
1056787053
112a066a54
1217026a65
13b9c370b
147782dc1
154ebabd8
hex362806d

56787053 has 4 divisors (see below), whose sum is σ = 56817408. Its totient is φ = 56756700.

The previous prime is 56787041. The next prime is 56787061. The reversal of 56787053 is 35078765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56787053 - 24 = 56787037 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 56787053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56787013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12173 + ... + 16178.

It is an arithmetic number, because the mean of its divisors is an integer number (14204352).

Almost surely, 256787053 is an apocalyptic number.

It is an amenable number.

56787053 is a deficient number, since it is larger than the sum of its proper divisors (30355).

56787053 is a wasteful number, since it uses less digits than its factorization.

56787053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30354.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 56787053 is about 7535.7184793489. The cubic root of 56787053 is about 384.3702596459.

The spelling of 56787053 in words is "fifty-six million, seven hundred eighty-seven thousand, fifty-three".

Divisors: 1 2003 28351 56787053