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56747143 = 314342571
BaseRepresentation
bin1101100001111…
…0010010000111
310221210001110001
43120132102013
5104011402033
65344142131
71256225365
oct330362207
9127701401
1056747143
112a039a72
1217007947
13b9ab4bb
147772635
154eade7d
hex361e487

56747143 has 8 divisors (see below), whose sum is σ = 59941376. Its totient is φ = 53638200.

The previous prime is 56747137. The next prime is 56747147. The reversal of 56747143 is 34174765.

56747143 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 56747143 - 25 = 56747111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56747147) 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, 19953 + ... + 22618.

It is an arithmetic number, because the mean of its divisors is an integer number (7492672).

Almost surely, 256747143 is an apocalyptic number.

56747143 is a deficient number, since it is larger than the sum of its proper divisors (3194233).

56747143 is a wasteful number, since it uses less digits than its factorization.

56747143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42645.

The product of its digits is 70560, while the sum is 37.

The square root of 56747143 is about 7533.0699585229. The cubic root of 56747143 is about 384.2801932700.

The spelling of 56747143 in words is "fifty-six million, seven hundred forty-seven thousand, one hundred forty-three".

Divisors: 1 31 43 1333 42571 1319701 1830553 56747143