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7973606225 = 521324534173
BaseRepresentation
bin1110110110100001…
…11001001101010001
3202120200202011110002
413123100321031101
5112312220344400
63355114015345
7401410351244
oct73320711521
922520664402
107973606225
113421990412
121666417555
139a0c316c0
14558d9725b
1531a034ed5
hex1db439351

7973606225 has 12 divisors (see below), whose sum is σ = 10647831516. Its totient is φ = 5888201280.

The previous prime is 7973606197. The next prime is 7973606269. The reversal of 7973606225 is 5226063797.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1130842384 + 6842763841 = 33628^2 + 82721^2 .

It is not a de Polignac number, because 7973606225 - 228 = 7705170769 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 7973606225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12266762 + ... + 12267411.

It is an arithmetic number, because the mean of its divisors is an integer number (887319293).

Almost surely, 27973606225 is an apocalyptic number.

It is an amenable number.

7973606225 is a deficient number, since it is larger than the sum of its proper divisors (2674225291).

7973606225 is a wasteful number, since it uses less digits than its factorization.

7973606225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24534196 (or 24534191 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 7973606225 is about 89295.0515146276. The cubic root of 7973606225 is about 1997.7980954478.

The spelling of 7973606225 in words is "seven billion, nine hundred seventy-three million, six hundred six thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 24534173 122670865 318944249 613354325 1594721245 7973606225