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12382125625 = 5444512
BaseRepresentation
bin10111000100000100…
…00011111000111001
31011221221011011011101
423202002003320321
5200324311010000
65404355531401
7615561221422
oct134202037071
934857134141
1012382125625
115284429281
1224968b9b61
13122438836c
1485668c649
154c70a2e6a
hex2e2083e39

12382125625 has 15 divisors (see below), whose sum is σ = 15476181193. Its totient is φ = 9903475000.

The previous prime is 12382125577. The next prime is 12382125659. The reversal of 12382125625 is 52652128321.

The square root of 12382125625 is 111275.

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

It can be written as a sum of positive squares in 2 ways, for example, as 970758649 + 11411366976 = 31157^2 + 106824^2 .

It is not a de Polignac number, because 12382125625 - 29 = 12382125113 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, 2779650 + ... + 2784100.

Almost surely, 212382125625 is an apocalyptic number.

12382125625 is the 111275-th square number.

12382125625 is the 55638-th centered octagonal number.

It is an amenable number.

12382125625 is a deficient number, since it is larger than the sum of its proper divisors (3094055568).

12382125625 is an frugal number, since it uses more digits than its factorization.

12382125625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922 (or 4456 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

Multiplying 12382125625 by its product of digits (57600), we get a square (713210436000000 = 267060002).

The spelling of 12382125625 in words is "twelve billion, three hundred eighty-two million, one hundred twenty-five thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 4451 22255 111275 556375 2781875 19811401 99057005 495285025 2476425125 12382125625