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680029 = 7195113
BaseRepresentation
bin10100110000001011101
31021112211021
42212001131
5133230104
622324141
75531410
oct2460135
91245737
10680029
11424a09
12289651
131aa6ac
14139b77
15d6754
hexa605d

680029 has 8 divisors (see below), whose sum is σ = 818240. Its totient is φ = 552096.

The previous prime is 680027. The next prime is 680039. The reversal of 680029 is 920086.

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 680029 - 21 = 680027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679985 and 680012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680027) 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, 2424 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (102280).

2680029 is an apocalyptic number.

It is an amenable number.

680029 is a deficient number, since it is larger than the sum of its proper divisors (138211).

680029 is a wasteful number, since it uses less digits than its factorization.

680029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 680029 is about 824.6387087689. The cubic root of 680029 is about 87.9378435044.

The spelling of 680029 in words is "six hundred eighty thousand, twenty-nine".

Divisors: 1 7 19 133 5113 35791 97147 680029