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231430130025 = 35229310531519
BaseRepresentation
bin1101011110001001001…
…1111000100101101001
3211010100202121201110020
43113202103320211221
512242432103130100
6254152330511053
722502024435103
oct3274223704551
9733322551406
10231430130025
118a170303076
1238a29595489
1318a92a81c53
14b2b6442573
1560478e55a0
hex35e24f8969

231430130025 has 24 divisors (see below), whose sum is σ = 383937093120. Its totient is φ = 123008130240.

The previous prime is 231430130017. The next prime is 231430130027. The reversal of 231430130025 is 520031034132.

It is not a de Polignac number, because 231430130025 - 23 = 231430130017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231430129977 and 231430130004.

It is not an unprimeable number, because it can be changed into a prime (231430130027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5243785 + ... + 5287734.

It is an arithmetic number, because the mean of its divisors is an integer number (15997378880).

Almost surely, 2231430130025 is an apocalyptic number.

231430130025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231430130025 is a deficient number, since it is larger than the sum of its proper divisors (152506963095).

231430130025 is a wasteful number, since it uses less digits than its factorization.

231430130025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531825 (or 10531820 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 231430130025 its reverse (520031034132), we get a palindrome (751461164157).

The spelling of 231430130025 in words is "two hundred thirty-one billion, four hundred thirty million, one hundred thirty thousand, twenty-five".

Divisors: 1 3 5 15 25 75 293 879 1465 4395 7325 21975 10531519 31594557 52657595 157972785 263287975 789863925 3085735067 9257205201 15428675335 46286026005 77143376675 231430130025