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314257431 = 3711475387
BaseRepresentation
bin10010101110110…
…011000000010111
3210220022221011010
4102232303000113
51120422214211
651103343303
710534100265
oct2256630027
9726287133
10314257431
11151432294
12892b1b33
1350150457
142da45435
151c8c84a6
hex12bb3017

314257431 has 8 divisors (see below), whose sum is σ = 424911744. Its totient is φ = 206554040.

The previous prime is 314257357. The next prime is 314257439. The reversal of 314257431 is 134752413.

It is a happy number.

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 314257431 - 214 = 314241047 is a prime.

It is a super-2 number, since 2×3142574312 = 197515465877439522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314257439) 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, 737481 + ... + 737906.

It is an arithmetic number, because the mean of its divisors is an integer number (53113968).

Almost surely, 2314257431 is an apocalyptic number.

314257431 is a deficient number, since it is larger than the sum of its proper divisors (110654313).

314257431 is a wasteful number, since it uses less digits than its factorization.

314257431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475461.

The product of its digits is 10080, while the sum is 30.

The square root of 314257431 is about 17727.3074943715. The cubic root of 314257431 is about 679.8741339993.

The spelling of 314257431 in words is "three hundred fourteen million, two hundred fifty-seven thousand, four hundred thirty-one".

Divisors: 1 3 71 213 1475387 4426161 104752477 314257431