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314671220 = 2257922521
BaseRepresentation
bin10010110000011…
…000000001110100
3210221002221202122
4102300120001310
51121023434340
651120255112
710540442543
oct2260300164
9727087678
10314671220
11151695166
1289471498
13502668b6
142db1215a
151c95adb5
hex12c18074

314671220 has 36 divisors (see below), whose sum is σ = 669545604. Its totient is φ = 124225920.

The previous prime is 314671153. The next prime is 314671223. The reversal of 314671220 is 22176413.

It can be written as a sum of positive squares in 2 ways, for example, as 34175716 + 280495504 = 5846^2 + 16748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 314671220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314671223) 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, 123560 + ... + 126080.

It is an arithmetic number, because the mean of its divisors is an integer number (18598489).

Almost surely, 2314671220 is an apocalyptic number.

It is an amenable number.

314671220 is an abundant number, since it is smaller than the sum of its proper divisors (354874384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

314671220 is a wasteful number, since it uses less digits than its factorization.

314671220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 314671220 is about 17738.9746039618. The cubic root of 314671220 is about 680.1724043825.

The spelling of 314671220 in words is "three hundred fourteen million, six hundred seventy-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 2521 5042 6241 10084 12482 12605 24964 25210 31205 50420 62410 124820 199159 398318 796636 995795 1991590 3983180 15733561 31467122 62934244 78667805 157335610 314671220