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680476159 = 1161861469
BaseRepresentation
bin101000100011110…
…011110111111111
31202102102202210201
4220203303313333
52343200214114
6151304544331
722601644336
oct5043636777
91672382721
10680476159
1131a1248a0
1216ba820a7
13aac9491c
1466534d1d
153eb17874
hex288f3dff

680476159 has 4 divisors (see below), whose sum is σ = 742337640. Its totient is φ = 618614680.

The previous prime is 680476109. The next prime is 680476163. The reversal of 680476159 is 951674086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680476159 - 27 = 680476031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680476109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30930724 + ... + 30930745.

It is an arithmetic number, because the mean of its divisors is an integer number (185584410).

Almost surely, 2680476159 is an apocalyptic number.

680476159 is a deficient number, since it is larger than the sum of its proper divisors (61861481).

680476159 is a wasteful number, since it uses less digits than its factorization.

680476159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61861480.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 680476159 is about 26085.9379551512. The cubic root of 680476159 is about 879.5711404652.

The spelling of 680476159 in words is "six hundred eighty million, four hundred seventy-six thousand, one hundred fifty-nine".

Divisors: 1 11 61861469 680476159