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12415530625 = 5444572
BaseRepresentation
bin10111001000000010…
…11111011010000001
31012001021000022012121
423210001133122001
5200411333440000
65411551524241
7616445161201
oct134401373201
935037008177
1012415530625
1152a1274a13
1224a5b29681
13122b283134
1485aca6401
154c9ea0b1a
hex2e405f681

12415530625 has 15 divisors (see below), whose sum is σ = 15517928767. Its totient is φ = 9930196000.

The previous prime is 12415530619. The next prime is 12415530637. The reversal of 12415530625 is 52603551421.

The square root of 12415530625 is 111425.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 7142447169 + 5273083456 = 84513^2 + 72616^2 .

It is not a de Polignac number, because 12415530625 - 211 = 12415528577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2783397 + ... + 2787853.

Almost surely, 212415530625 is an apocalyptic number.

12415530625 is the 111425-th square number.

12415530625 is the 55713-rd centered octagonal number.

It is an amenable number.

12415530625 is a deficient number, since it is larger than the sum of its proper divisors (3102398142).

12415530625 is an frugal number, since it uses more digits than its factorization.

12415530625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8934 (or 4462 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 12415530625 in words is "twelve billion, four hundred fifteen million, five hundred thirty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 4457 22285 111425 557125 2785625 19864849 99324245 496621225 2483106125 12415530625