Search a number
-
+
56251412 = 22721092633
BaseRepresentation
bin1101011010010…
…1010000010100
310220211212102122
43112211100110
5103400021122
65325355112
71252062200
oct326452024
9126755378
1056251412
1129830578
1216a08a98
13b866979
147683b00
154e12142
hex35a5414

56251412 has 36 divisors (see below), whose sum is σ = 115606260. Its totient is φ = 23877504.

The previous prime is 56251409. The next prime is 56251417. The reversal of 56251412 is 21415265.

It can be written as a sum of positive squares in 2 ways, for example, as 23464336 + 32787076 = 4844^2 + 5726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56251417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20048 + ... + 22680.

It is an arithmetic number, because the mean of its divisors is an integer number (3211285).

Almost surely, 256251412 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 56251412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57803130).

56251412 is an abundant number, since it is smaller than the sum of its proper divisors (59354848).

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

56251412 is a wasteful number, since it uses less digits than its factorization.

56251412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2751 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 56251412 is about 7500.0941327426. The cubic root of 56251412 is about 383.1579221816.

Adding to 56251412 its reverse (21415265), we get a palindrome (77666677).

The spelling of 56251412 in words is "fifty-six million, two hundred fifty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 109 196 218 436 763 1526 2633 3052 5266 5341 10532 10682 18431 21364 36862 73724 129017 258034 286997 516068 573994 1147988 2008979 4017958 8035916 14062853 28125706 56251412