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56043199 = 325717207
BaseRepresentation
bin1101010111001…
…0011010111111
310220110021211001
43111302122333
5103321340244
65321111131
71250234152
oct325623277
9126407731
1056043199
11296a90a3
12169284a7
13b7c2c74
14762bc99
154dc05d4
hex35726bf

56043199 has 4 divisors (see below), whose sum is σ = 56063664. Its totient is φ = 56022736.

The previous prime is 56043193. The next prime is 56043209. The reversal of 56043199 is 99134065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99134065 = 519826813.

It is a cyclic number.

It is not a de Polignac number, because 56043199 - 215 = 56010431 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 (56043193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5347 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (14015916).

Almost surely, 256043199 is an apocalyptic number.

56043199 is a deficient number, since it is larger than the sum of its proper divisors (20465).

56043199 is a wasteful number, since it uses less digits than its factorization.

56043199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20464.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 56043199 is about 7486.2005717186. The cubic root of 56043199 is about 382.6845883096.

The spelling of 56043199 in words is "fifty-six million, forty-three thousand, one hundred ninety-nine".

Divisors: 1 3257 17207 56043199