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56143194 = 2313171429
BaseRepresentation
bin1101011000101…
…0110101011010
310220122100222120
43112022311122
5103333040234
65323202110
71251131532
oct326126532
9126570876
1056143194
1129767238
1216976336
13b829633
1476564c2
154de0049
hex358ad5a

56143194 has 16 divisors (see below), whose sum is σ = 113145120. Its totient is φ = 18571280.

The previous prime is 56143193. The next prime is 56143211. The reversal of 56143194 is 49134165.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56143193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34929 + ... + 36500.

It is an arithmetic number, because the mean of its divisors is an integer number (7071570).

Almost surely, 256143194 is an apocalyptic number.

56143194 is an abundant number, since it is smaller than the sum of its proper divisors (57001926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56143194 is a wasteful number, since it uses less digits than its factorization.

56143194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71565.

The product of its digits is 12960, while the sum is 33.

The square root of 56143194 is about 7492.8762167808. The cubic root of 56143194 is about 382.9120545595.

The spelling of 56143194 in words is "fifty-six million, one hundred forty-three thousand, one hundred ninety-four".

Divisors: 1 2 3 6 131 262 393 786 71429 142858 214287 428574 9357199 18714398 28071597 56143194