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25224713 = 376731013
BaseRepresentation
bin110000000111…
…0011000001001
31202110112210122
41200032120021
522424142323
62300353025
7424256303
oct140163011
952415718
1025224713
1113269778
128545775
1352c2587
1434c8973
152333ec8
hex180e609

25224713 has 8 divisors (see below), whose sum is σ = 25970568. Its totient is φ = 24482304.

The previous prime is 25224707. The next prime is 25224733. The reversal of 25224713 is 31742252.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 24571849 = 808^2 + 4957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25224713 - 210 = 25223689 is a prime.

It is a super-2 number, since 2×252247132 = 1272572291864738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25224733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24395 + ... + 25407.

It is an arithmetic number, because the mean of its divisors is an integer number (3246321).

Almost surely, 225224713 is an apocalyptic number.

It is an amenable number.

25224713 is a deficient number, since it is larger than the sum of its proper divisors (745855).

25224713 is a wasteful number, since it uses less digits than its factorization.

25224713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

The product of its digits is 3360, while the sum is 26.

The square root of 25224713 is about 5022.4210297425. The cubic root of 25224713 is about 293.2752483417.

Adding to 25224713 its reverse (31742252), we get a palindrome (56966965).

The spelling of 25224713 in words is "twenty-five million, two hundred twenty-four thousand, seven hundred thirteen".

Divisors: 1 37 673 1013 24901 37481 681749 25224713