Search a number
-
+
56290884 = 22313734943
BaseRepresentation
bin1101011010111…
…0111001000100
310220220212120120
43112232321010
5103402302014
65330301540
71252315236
oct326567104
9126825516
1056290884
11298581a1
1216a278b0
13b87b920
147694256
154e1dba9
hex35aee44

56290884 has 48 divisors (see below), whose sum is σ = 143415552. Its totient is φ = 17079552.

The previous prime is 56290877. The next prime is 56290889. The reversal of 56290884 is 48809265.

It is not an unprimeable number, because it can be changed into a prime (56290889) 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, 8917 + ... + 13859.

It is an arithmetic number, because the mean of its divisors is an integer number (2987824).

Almost surely, 256290884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56290884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71707776).

56290884 is an abundant number, since it is smaller than the sum of its proper divisors (87124668).

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

56290884 is a wasteful number, since it uses less digits than its factorization.

56290884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036 (or 5034 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 56290884 is about 7502.7251049202. The cubic root of 56290884 is about 383.2475227374.

The spelling of 56290884 in words is "fifty-six million, two hundred ninety thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 73 78 146 156 219 292 438 876 949 1898 2847 3796 4943 5694 9886 11388 14829 19772 29658 59316 64259 128518 192777 257036 360839 385554 721678 771108 1082517 1443356 2165034 4330068 4690907 9381814 14072721 18763628 28145442 56290884