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56950143 = 3532511427
BaseRepresentation
bin1101100100111…
…1110101111111
310222011100220120
43121033311333
5104034401033
65352350023
71261032255
oct331176577
9128140816
1056950143
112a168538
12170a5313
13ba4ca13
1477c65d5
154eee1b3
hex364fd7f

56950143 has 16 divisors (see below), whose sum is σ = 77728896. Its totient is φ = 37076000.

The previous prime is 56950133. The next prime is 56950151. The reversal of 56950143 is 34105965.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56950143 - 25 = 56950111 is a prime.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (56950133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39196 + ... + 40622.

It is an arithmetic number, because the mean of its divisors is an integer number (4858056).

Almost surely, 256950143 is an apocalyptic number.

56950143 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56950143 is a deficient number, since it is larger than the sum of its proper divisors (20778753).

56950143 is a wasteful number, since it uses less digits than its factorization.

56950143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56950143 is about 7546.5318524472. The cubic root of 56950143 is about 384.7378729573.

The spelling of 56950143 in words is "fifty-six million, nine hundred fifty thousand, one hundred forty-three".

Divisors: 1 3 53 159 251 753 1427 4281 13303 39909 75631 226893 358177 1074531 18983381 56950143