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25305832676 = 2261103712429
BaseRepresentation
bin10111100100010110…
…000101110011100100
32102022121101111101002
4113210112011303210
5403311243121201
615343023452432
71554050012555
oct274426056344
972277344332
1025305832676
11a806534703
124aa2a57118
1325039c70b7
141320c3832c
159d198476b
hex5e4585ce4

25305832676 has 12 divisors (see below), whose sum is σ = 45011194620. Its totient is φ = 12445491360.

The previous prime is 25305832661. The next prime is 25305832703. The reversal of 25305832676 is 67623850352.

It can be written as a sum of positive squares in 2 ways, for example, as 6530256100 + 18775576576 = 80810^2 + 137024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25305832676.

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 3 ways as a sum of consecutive naturals, for example, 51855971 + ... + 51856458.

It is an arithmetic number, because the mean of its divisors is an integer number (3750932885).

Almost surely, 225305832676 is an apocalyptic number.

It is an amenable number.

25305832676 is a deficient number, since it is larger than the sum of its proper divisors (19705361944).

25305832676 is a wasteful number, since it uses less digits than its factorization.

25305832676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103712494 (or 103712492 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 25305832676 in words is "twenty-five billion, three hundred five million, eight hundred thirty-two thousand, six hundred seventy-six".

Divisors: 1 2 4 61 122 244 103712429 207424858 414849716 6326458169 12652916338 25305832676