Search a number
-
+
56052131 = 199281669
BaseRepresentation
bin1101010111010…
…0100110100011
310220110202001212
43111310212203
5103322132011
65321220335
71250302202
oct325644643
9126422055
1056052131
1129704883
12169316ab
13b7c7055
147631239
154dc308b
hex35749a3

56052131 has 4 divisors (see below), whose sum is σ = 56334000. Its totient is φ = 55770264.

The previous prime is 56052121. The next prime is 56052137. The reversal of 56052131 is 13125065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56052131 - 26 = 56052067 is a prime.

It is a super-2 number, since 2×560521312 = 6283682779282322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56052097 and 56052106.

It is not an unprimeable number, because it can be changed into a prime (56052137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140636 + ... + 141033.

It is an arithmetic number, because the mean of its divisors is an integer number (14083500).

Almost surely, 256052131 is an apocalyptic number.

56052131 is a deficient number, since it is larger than the sum of its proper divisors (281869).

56052131 is a wasteful number, since it uses less digits than its factorization.

56052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281868.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56052131 is about 7486.7971122503. The cubic root of 56052131 is about 382.7049176105.

Adding to 56052131 its reverse (13125065), we get a palindrome (69177196).

The spelling of 56052131 in words is "fifty-six million, fifty-two thousand, one hundred thirty-one".

Divisors: 1 199 281669 56052131