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3231237425 = 52139942269
BaseRepresentation
bin1100000010011000…
…1100010100110001
322100012010212110012
43000212030110301
523104144044200
61252344344305
7143034031163
oct30046142461
98305125405
103231237425
111408a49559
12762175095
133c6587b10
142291da933
1513da1da35
hexc098c531

3231237425 has 12 divisors (see below), whose sum is σ = 4314945180. Its totient is φ = 2386144320.

The previous prime is 3231237421. The next prime is 3231237433. The reversal of 3231237425 is 5247321323.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 230827249 + 3000410176 = 15193^2 + 54776^2 .

It is not a de Polignac number, because 3231237425 - 22 = 3231237421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3231237391 and 3231237400.

It is not an unprimeable number, because it can be changed into a prime (3231237421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4970810 + ... + 4971459.

It is an arithmetic number, because the mean of its divisors is an integer number (359578765).

Almost surely, 23231237425 is an apocalyptic number.

It is an amenable number.

3231237425 is a deficient number, since it is larger than the sum of its proper divisors (1083707755).

3231237425 is a wasteful number, since it uses less digits than its factorization.

3231237425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942292 (or 9942287 counting only the distinct ones).

The product of its digits is 30240, while the sum is 32.

The square root of 3231237425 is about 56843.9743948292. The cubic root of 3231237425 is about 1478.3920668620.

Adding to 3231237425 its reverse (5247321323), we get a palindrome (8478558748).

The spelling of 3231237425 in words is "three billion, two hundred thirty-one million, two hundred thirty-seven thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 325 9942269 49711345 129249497 248556725 646247485 3231237425