Search a number
-
+
56144751 = 3133146439
BaseRepresentation
bin1101011000101…
…1001101101111
310220122110010020
43112023031233
5103333113001
65323213223
71251136215
oct326131557
9126573106
1056144751
1129768423
1216977213
13b82a260
147656cb5
154de0736
hex358b36f

56144751 has 16 divisors (see below), whose sum is σ = 83220480. Its totient is φ = 33435360.

The previous prime is 56144723. The next prime is 56144773. The reversal of 56144751 is 15744165.

It is not a de Polignac number, because 56144751 - 26 = 56144687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56144051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22011 + ... + 24428.

It is an arithmetic number, because the mean of its divisors is an integer number (5201280).

Almost surely, 256144751 is an apocalyptic number.

56144751 is a deficient number, since it is larger than the sum of its proper divisors (27075729).

56144751 is a wasteful number, since it uses less digits than its factorization.

56144751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46486.

The product of its digits is 16800, while the sum is 33.

The square root of 56144751 is about 7492.9801147474. The cubic root of 56144751 is about 382.9155942498.

The spelling of 56144751 in words is "fifty-six million, one hundred forty-four thousand, seven hundred fifty-one".

Divisors: 1 3 13 31 39 93 403 1209 46439 139317 603707 1439609 1811121 4318827 18714917 56144751