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313130330 = 25211148403
BaseRepresentation
bin10010101010011…
…111110101011010
3210211012200001122
4102222133311122
51120130132310
651023245242
710521364262
oct2252376532
9724180048
10313130330
111508324a7
1288a49822
134cb47426
142d8307a2
151c754555
hex12a9fd5a

313130330 has 16 divisors (see below), whose sum is σ = 566309664. Its totient is φ = 124657680.

The previous prime is 313130273. The next prime is 313130333. The reversal of 313130330 is 33031313.

Adding to 313130330 its reverse (33031313), we get a palindrome (346161643).

313130330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 313130299 and 313130308.

It is not an unprimeable number, because it can be changed into a prime (313130333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72092 + ... + 76311.

It is an arithmetic number, because the mean of its divisors is an integer number (35394354).

Almost surely, 2313130330 is an apocalyptic number.

313130330 is a deficient number, since it is larger than the sum of its proper divisors (253179334).

313130330 is a wasteful number, since it uses less digits than its factorization.

313130330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148621.

The product of its (nonzero) digits is 243, while the sum is 17.

The square root of 313130330 is about 17695.4889731818. The cubic root of 313130330 is about 679.0603587523.

The spelling of 313130330 in words is "three hundred thirteen million, one hundred thirty thousand, three hundred thirty".

Divisors: 1 2 5 10 211 422 1055 2110 148403 296806 742015 1484030 31313033 62626066 156565165 313130330