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12972146087605 = 523112801270327
BaseRepresentation
bin1011110011000101000000…
…1010001101011010110101
31200221010101011110011122111
42330301100022031122311
53200013423344300410
643331153250331021
72506130605300615
oct274612012153265
950833334404574
1012972146087605
114151502313091
121556109589a71
137313640c9853
1432bbd8a22a45
1517767e17ab8a
hexbcc5028d6b5

12972146087605 has 8 divisors (see below), whose sum is σ = 16243382927232. Its totient is φ = 9926511788688.

The previous prime is 12972146087587. The next prime is 12972146087611. The reversal of 12972146087605 is 50678064127921.

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

It is a cyclic number.

It is not a de Polignac number, because 12972146087605 - 25 = 12972146087573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12972146087605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56400635049 + ... + 56400635278.

It is an arithmetic number, because the mean of its divisors is an integer number (2030422865904).

Almost surely, 212972146087605 is an apocalyptic number.

It is an amenable number.

12972146087605 is a deficient number, since it is larger than the sum of its proper divisors (3271236839627).

12972146087605 is a wasteful number, since it uses less digits than its factorization.

12972146087605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112801270355.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 12972146087605 in words is "twelve trillion, nine hundred seventy-two billion, one hundred forty-six million, eighty-seven thousand, six hundred five".

Divisors: 1 5 23 115 112801270327 564006351635 2594429217521 12972146087605