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8687909520676 = 2214737632
BaseRepresentation
bin111111001101100111111…
…0000101100010100100100
31010202120000100111210221201
41332123033300230110210
52114320314314130201
630251100500252244
71554452332316011
oct176331760542444
933676010453851
108687909520676
11284a581481861
12b839373a1084
134b036023a409
142206d5d32708
15100ed4878801
hex7e6cfc2c524

8687909520676 has 9 divisors (see below), whose sum is σ = 15203851977531. Its totient is φ = 4343951812812.

The previous prime is 8687909520659. The next prime is 8687909520679. The reversal of 8687909520676 is 6760259097868.

The square root of 8687909520676 is 2947526.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8687909520599 and 8687909520608.

It is not an unprimeable number, because it can be changed into a prime (8687909520679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5158171 + ... + 6631933.

Almost surely, 28687909520676 is an apocalyptic number.

8687909520676 is the 2947526-th square number.

It is an amenable number.

8687909520676 is a deficient number, since it is larger than the sum of its proper divisors (6515942456855).

8687909520676 is an frugal number, since it uses more digits than its factorization.

8687909520676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947530 (or 1473765 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 73.

The spelling of 8687909520676 in words is "eight trillion, six hundred eighty-seven billion, nine hundred nine million, five hundred twenty thousand, six hundred seventy-six".

Divisors: 1 2 4 1473763 2947526 5895052 2171977380169 4343954760338 8687909520676