Search a number
-
+
56877261 = 374362987
BaseRepresentation
bin1101100011111…
…0000011001101
310222000122221020
43120332003031
5104030033021
65351024353
71260306630
oct330760315
9128018836
1056877261
112a118801
121706b0b9
13ba257ac
1477a7c17
154ed77c6
hex363e0cd

56877261 has 16 divisors (see below), whose sum is σ = 88687104. Its totient is φ = 31744944.

The previous prime is 56877221. The next prime is 56877263. The reversal of 56877261 is 16277865.

It is not a de Polignac number, because 56877261 - 29 = 56876749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56877263) 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, 30591 + ... + 32396.

It is an arithmetic number, because the mean of its divisors is an integer number (5542944).

Almost surely, 256877261 is an apocalyptic number.

It is an amenable number.

56877261 is a deficient number, since it is larger than the sum of its proper divisors (31809843).

56877261 is a wasteful number, since it uses less digits than its factorization.

56877261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63040.

The product of its digits is 141120, while the sum is 42.

The square root of 56877261 is about 7541.7014658497. The cubic root of 56877261 is about 384.5736800083.

The spelling of 56877261 in words is "fifty-six million, eight hundred seventy-seven thousand, two hundred sixty-one".

Divisors: 1 3 7 21 43 129 301 903 62987 188961 440909 1322727 2708441 8125323 18959087 56877261