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313030319 = 7107417931
BaseRepresentation
bin10010101010000…
…111011010101111
3210211000120212112
4102222013122233
51120113432234
651021154235
710520466560
oct2252073257
9724016775
10313030319
11150774348
12889bb97b
134cb10a54
142d806167
151c734ace
hex12a876af

313030319 has 8 divisors (see below), whose sum is σ = 361093248. Its totient is φ = 265803480.

The previous prime is 313030309. The next prime is 313030331. The reversal of 313030319 is 913030313.

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 313030319 - 28 = 313030063 is a prime.

It is a super-2 number, since 2×3130303192 = 195975961226483522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313030294 and 313030303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313030309) 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, 208217 + ... + 209714.

It is an arithmetic number, because the mean of its divisors is an integer number (45136656).

Almost surely, 2313030319 is an apocalyptic number.

313030319 is a deficient number, since it is larger than the sum of its proper divisors (48062929).

313030319 is a wasteful number, since it uses less digits than its factorization.

313030319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418045.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 313030319 is about 17692.6628578063. The cubic root of 313030319 is about 678.9880558052.

The spelling of 313030319 in words is "three hundred thirteen million, thirty thousand, three hundred nineteen".

Divisors: 1 7 107 749 417931 2925517 44718617 313030319