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679201 = 1739953
BaseRepresentation
bin10100101110100100001
31021111200121
42211310201
5133213301
622320241
75526115
oct2456441
91244617
10679201
11424326
12289081
131aa1c3
14139745
15d63a1
hexa5d21

679201 has 4 divisors (see below), whose sum is σ = 719172. Its totient is φ = 639232.

The previous prime is 679183. The next prime is 679207. The reversal of 679201 is 102976.

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

It can be written as a sum of positive squares in 2 ways, for example, as 518400 + 160801 = 720^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 679201 - 25 = 679169 is a prime.

It is a super-2 number, since 2×6792012 = 922627996802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679207) 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, 19960 + ... + 19993.

It is an arithmetic number, because the mean of its divisors is an integer number (179793).

2679201 is an apocalyptic number.

It is an amenable number.

679201 is a deficient number, since it is larger than the sum of its proper divisors (39971).

679201 is a wasteful number, since it uses less digits than its factorization.

679201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39970.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 679201 is about 824.1365178173. The cubic root of 679201 is about 87.9021381122.

The spelling of 679201 in words is "six hundred seventy-nine thousand, two hundred one".

Divisors: 1 17 39953 679201