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431013025 = 5217240521
BaseRepresentation
bin11001101100001…
…011110010100001
31010001000201201101
4121230023302201
51340314404100
6110434034401
713452356512
oct3154136241
91101021641
10431013025
11201328513
12100418a01
136b3ac6c1
1441358a09
1527c8c86a
hex19b0bca1

431013025 has 6 divisors (see below), whose sum is σ = 534456182. Its totient is φ = 344810400.

The previous prime is 431013017. The next prime is 431013029. The reversal of 431013025 is 520310134.

It can be written as a sum of positive squares in 3 ways, for example, as 8340544 + 422672481 = 2888^2 + 20559^2 .

It is not a de Polignac number, because 431013025 - 23 = 431013017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431012993 and 431013011.

It is not an unprimeable number, because it can be changed into a prime (431013029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8620236 + ... + 8620285.

Almost surely, 2431013025 is an apocalyptic number.

It is an amenable number.

431013025 is a deficient number, since it is larger than the sum of its proper divisors (103443157).

431013025 is a wasteful number, since it uses less digits than its factorization.

431013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17240531 (or 17240526 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 431013025 is about 20760.8531857436. The cubic root of 431013025 is about 755.3764916112.

Adding to 431013025 its reverse (520310134), we get a palindrome (951323159).

The spelling of 431013025 in words is "four hundred thirty-one million, thirteen thousand, twenty-five".

Divisors: 1 5 25 17240521 86202605 431013025