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313120330 = 2531312033
BaseRepresentation
bin10010101010011…
…101011001001010
3210211012011100021
4102222131121022
51120124322310
651023131054
710521323155
oct2252353112
9724164307
10313120330
11150825a36
1288a43a8a
134cb42a03
142d82ac9c
151c7515da
hex12a9d64a

313120330 has 8 divisors (see below), whose sum is σ = 563616612. Its totient is φ = 125248128.

The previous prime is 313120277. The next prime is 313120333. The reversal of 313120330 is 33021313.

It can be written as a sum of positive squares in 2 ways, for example, as 295049329 + 18071001 = 17177^2 + 4251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (313120333) 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, 15656007 + ... + 15656026.

Almost surely, 2313120330 is an apocalyptic number.

313120330 is a deficient number, since it is larger than the sum of its proper divisors (250496282).

313120330 is a wasteful number, since it uses less digits than its factorization.

313120330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31312040.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 313120330 is about 17695.2064130374. The cubic root of 313120330 is about 679.0531299457.

Adding to 313120330 its reverse (33021313), we get a palindrome (346141643).

The spelling of 313120330 in words is "three hundred thirteen million, one hundred twenty thousand, three hundred thirty".

Divisors: 1 2 5 10 31312033 62624066 156560165 313120330