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680013671 = 19127712853
BaseRepresentation
bin101000100010000…
…010111101100111
31202101120021101112
4220202002331213
52343040414141
6151251015235
722565010101
oct5042027547
91671507345
10680013671
11319939377
1216b89a51b
13aab6226c
1466454571
153ea757eb
hex28882f67

680013671 has 8 divisors (see below), whose sum is σ = 686095104. Its totient is φ = 673958880.

The previous prime is 680013641. The next prime is 680013703. The reversal of 680013671 is 176310086.

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 680013671 - 214 = 679997287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680013601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46481 + ... + 59333.

It is an arithmetic number, because the mean of its divisors is an integer number (85761888).

Almost surely, 2680013671 is an apocalyptic number.

680013671 is a deficient number, since it is larger than the sum of its proper divisors (6081433).

680013671 is a wasteful number, since it uses less digits than its factorization.

680013671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13321.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 680013671 is about 26077.0717489522. The cubic root of 680013671 is about 879.3718274371.

The spelling of 680013671 in words is "six hundred eighty million, thirteen thousand, six hundred seventy-one".

Divisors: 1 191 277 12853 52907 2454923 3560281 680013671