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12529207930 = 251252920793
BaseRepresentation
bin10111010101100110…
…01000101001111010
31012100011220201011011
423222303020221322
5201124434123210
65431132224134
7622325340001
oct135263105172
935304821134
1012529207930
11534a4583a8
12251800b04a
1312489a5205
1486c017c38
154d4e57d8a
hex2eacc8a7a

12529207930 has 8 divisors (see below), whose sum is σ = 22552574292. Its totient is φ = 5011683168.

The previous prime is 12529207921. The next prime is 12529207939. The reversal of 12529207930 is 3970292521.

It is an interprime number because it is at equal distance from previous prime (12529207921) and next prime (12529207939).

It can be written as a sum of positive squares in 2 ways, for example, as 11704426969 + 824780961 = 108187^2 + 28719^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12529207939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626460387 + ... + 626460406.

Almost surely, 212529207930 is an apocalyptic number.

12529207930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12529207930 is a deficient number, since it is larger than the sum of its proper divisors (10023366362).

12529207930 is a wasteful number, since it uses less digits than its factorization.

12529207930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252920800.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 12529207930 in words is "twelve billion, five hundred twenty-nine million, two hundred seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 1252920793 2505841586 6264603965 12529207930