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313352020 = 22515667601
BaseRepresentation
bin10010101011010…
…101111101010100
3210211121221011101
4102223111331110
51120204231040
651032115444
710523306512
oct2253257524
9724557141
10313352020
11150974013
1288b35b84
134cbc42c7
142d88b4b2
151c79a09a
hex12ad5f54

313352020 has 12 divisors (see below), whose sum is σ = 658039284. Its totient is φ = 125340800.

The previous prime is 313351991. The next prime is 313352021. The reversal of 313352020 is 20253313.

It can be written as a sum of positive squares in 2 ways, for example, as 127193284 + 186158736 = 11278^2 + 13644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313352021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7833781 + ... + 7833820.

It is an arithmetic number, because the mean of its divisors is an integer number (54836607).

Almost surely, 2313352020 is an apocalyptic number.

It is an amenable number.

313352020 is an abundant number, since it is smaller than the sum of its proper divisors (344687264).

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

313352020 is a wasteful number, since it uses less digits than its factorization.

313352020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667610 (or 15667608 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 313352020 is about 17701.7518907028. The cubic root of 313352020 is about 679.2205746580.

The spelling of 313352020 in words is "three hundred thirteen million, three hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 15667601 31335202 62670404 78338005 156676010 313352020