Search a number
-
+
314881520 = 2453936019
BaseRepresentation
bin10010110001001…
…011010111110000
3210221111122020112
4102301023113300
51121102202040
651125000452
710542306632
oct2261132760
9727448215
10314881520
11151819168
1289553128
135030b535
142db68a52
151c99d365
hex12c4b5f0

314881520 has 20 divisors (see below), whose sum is σ = 732099720. Its totient is φ = 125952576.

The previous prime is 314881493. The next prime is 314881543. The reversal of 314881520 is 25188413.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967930 + ... + 1968089.

It is an arithmetic number, because the mean of its divisors is an integer number (36604986).

Almost surely, 2314881520 is an apocalyptic number.

It is an amenable number.

314881520 is an abundant number, since it is smaller than the sum of its proper divisors (417218200).

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

314881520 is a wasteful number, since it uses less digits than its factorization.

314881520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936032 (or 3936026 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 314881520 is about 17744.9012395110. The cubic root of 314881520 is about 680.3238941428.

The spelling of 314881520 in words is "three hundred fourteen million, eight hundred eighty-one thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3936019 7872038 15744076 19680095 31488152 39360190 62976304 78720380 157440760 314881520