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679061271 = 37153121121
BaseRepresentation
bin101000011110011…
…010011100010111
31202022202212221110
4220132122130113
52342314430041
6151214350103
722553632320
oct5036323427
91668685843
10679061271
11319348869
1216b4bb333
13aa8ba905
1466287447
153e938516
hex2879a717

679061271 has 16 divisors (see below), whose sum is σ = 1035484928. Its totient is φ = 387763200.

The previous prime is 679061261. The next prime is 679061291. The reversal of 679061271 is 172160976.

It is not a de Polignac number, because 679061271 - 214 = 679044887 is a prime.

It is a super-2 number, since 2×6790612712 = 922248419544270882, 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 (679061261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21591 + ... + 42711.

It is an arithmetic number, because the mean of its divisors is an integer number (64717808).

Almost surely, 2679061271 is an apocalyptic number.

679061271 is a deficient number, since it is larger than the sum of its proper divisors (356423657).

679061271 is a wasteful number, since it uses less digits than its factorization.

679061271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22662.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 679061271 is about 26058.8040976557. The cubic root of 679061271 is about 878.9610979352.

The spelling of 679061271 in words is "six hundred seventy-nine million, sixty-one thousand, two hundred seventy-one".

Divisors: 1 3 7 21 1531 4593 10717 21121 32151 63363 147847 443541 32336251 97008753 226353757 679061271