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679544271 = 32710786417
BaseRepresentation
bin101000100000010…
…000010111001111
31202100200102111100
4220200100113033
52342430404041
6151232554143
722561013430
oct5040202717
91670612440
10679544271
1131964873a
1216b6b2953
13aaa29703
1466371487
153e9d16b6
hex288105cf

679544271 has 12 divisors (see below), whose sum is σ = 1121787472. Its totient is φ = 388310976.

The previous prime is 679544221. The next prime is 679544287. The reversal of 679544271 is 172445976.

It is not a de Polignac number, because 679544271 - 210 = 679543247 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 (679544221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5393146 + ... + 5393271.

Almost surely, 2679544271 is an apocalyptic number.

679544271 is a deficient number, since it is larger than the sum of its proper divisors (442243201).

679544271 is a wasteful number, since it uses less digits than its factorization.

679544271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786430 (or 10786427 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 679544271 is about 26068.0699515710. The cubic root of 679544271 is about 879.1694431973.

The spelling of 679544271 in words is "six hundred seventy-nine million, five hundred forty-four thousand, two hundred seventy-one".

Divisors: 1 3 7 9 21 63 10786417 32359251 75504919 97077753 226514757 679544271