Search a number
-
+
2572131 = 343127157
BaseRepresentation
bin1001110011111101100011
311211200022010
421303331203
51124302011
6131044003
730601632
oct11637543
94750263
102572131
1114a7531
12a40603
136c0993
144ad519
1535c1a6
hex273f63

2572131 has 16 divisors (see below), whose sum is σ = 3559424. Its totient is φ = 1651104.

The previous prime is 2572127. The next prime is 2572133. The reversal of 2572131 is 1312752.

It is not a de Polignac number, because 2572131 - 22 = 2572127 is a prime.

It is a super-2 number, since 2×25721312 = 13231715762322, 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 = 2572098 and 2572107.

It is not an unprimeable number, because it can be changed into a prime (2572133) 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, 16305 + ... + 16461.

It is an arithmetic number, because the mean of its divisors is an integer number (222464).

22572131 is an apocalyptic number.

2572131 is a deficient number, since it is larger than the sum of its proper divisors (987293).

2572131 is a wasteful number, since it uses less digits than its factorization.

2572131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its digits is 420, while the sum is 21.

The square root of 2572131 is about 1603.7864571071. The cubic root of 2572131 is about 137.0138157165.

Adding to 2572131 its reverse (1312752), we get a palindrome (3884883).

It can be divided in two parts, 25721 and 31, that added together give a palindrome (25752).

The spelling of 2572131 in words is "two million, five hundred seventy-two thousand, one hundred thirty-one".

Divisors: 1 3 43 127 129 157 381 471 5461 6751 16383 19939 20253 59817 857377 2572131