Search a number
-
+
56157101 = 7111356101
BaseRepresentation
bin1101011000111…
…0001110101101
310220200002001122
43112032032231
5103334011401
65323350325
71251220220
oct326161655
9126602048
1056157101
1129776730
12169823a5
13b832a70
14765b5b7
154de421b
hex358e3ad

56157101 has 16 divisors (see below), whose sum is σ = 75401088. Its totient is φ = 40392000.

The previous prime is 56157091. The next prime is 56157109. The reversal of 56157101 is 10175165.

It is not a de Polignac number, because 56157101 - 214 = 56140717 is a prime.

It is a Smith number, since the sum of its digits (26) 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 (56157109) 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, 27050 + ... + 29051.

It is an arithmetic number, because the mean of its divisors is an integer number (4712568).

Almost surely, 256157101 is an apocalyptic number.

It is an amenable number.

56157101 is a deficient number, since it is larger than the sum of its proper divisors (19243987).

56157101 is a wasteful number, since it uses less digits than its factorization.

56157101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56132.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 56157101 is about 7493.8041741161. The cubic root of 56157101 is about 382.9436684735.

The spelling of 56157101 in words is "fifty-six million, one hundred fifty-seven thousand, one hundred one".

Divisors: 1 7 11 13 77 91 143 1001 56101 392707 617111 729313 4319777 5105191 8022443 56157101