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12590681272225 = 527620692
BaseRepresentation
bin1011011100110111111100…
…0101011010111110100001
31122120122202020002201221221
42313031333011122332201
53122241203401202400
642440025031415041
72436434551000000
oct267157705327641
948518666081857
1012590681272225
114014750381291
1214b41a9824481
137043b0842994
1431756c3a0c37
1516c7a4b03c1a
hexb737f15afa1

12590681272225 has 63 divisors (see below), whose sum is σ = 18223304571577. Its totient is φ = 8629437173280.

The previous prime is 12590681272123. The next prime is 12590681272321. The reversal of 12590681272225 is 52227218609521.

It is a happy number.

The square root of 12590681272225 is 3548335.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3111868874401 + 9478812397824 = 1764049^2 + 3078768^2 .

It is not a de Polignac number, because 12590681272225 - 217 = 12590681141153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 6085393491 + ... + 6085395559.

Almost surely, 212590681272225 is an apocalyptic number.

12590681272225 is the 3548335-th square number.

12590681272225 is the 1774168-th centered octagonal number.

It is an amenable number.

12590681272225 is a deficient number, since it is larger than the sum of its proper divisors (5632623299352).

12590681272225 is an frugal number, since it uses more digits than its factorization.

12590681272225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190 (or 2081 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 12590681272225 in words is "twelve trillion, five hundred ninety billion, six hundred eighty-one million, two hundred seventy-two thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 343 1225 1715 2069 2401 8575 10345 12005 14483 16807 51725 60025 72415 84035 101381 117649 362075 420175 506905 588245 709667 2534525 2941225 3548335 4280761 4967669 17741675 21403805 24838345 29965327 34773683 107019025 124191725 149826635 173868415 209757289 243415781 749133175 869342075 1048786445 1217078905 1468301023 5243932225 6085394525 7341505115 10278107161 36707525575 51390535805 71946750127 256952679025 359733750635 503627250889 1798668753175 2518136254445 12590681272225