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313030111 = 1916475269
BaseRepresentation
bin10010101010000…
…111010111011111
3210211000120120211
4102222013113133
51120113430421
651021153251
710520466142
oct2252072737
9724016524
10313030111
11150774179
12889bb827
134cb10924
142d806059
151c7349e1
hex12a875df

313030111 has 4 divisors (see below), whose sum is σ = 329505400. Its totient is φ = 296554824.

The previous prime is 313030103. The next prime is 313030127. The reversal of 313030111 is 111030313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313030111 - 23 = 313030103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313030091 and 313030100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313030181) 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 3 ways as a sum of consecutive naturals, for example, 8237616 + ... + 8237653.

It is an arithmetic number, because the mean of its divisors is an integer number (82376350).

Almost surely, 2313030111 is an apocalyptic number.

313030111 is a deficient number, since it is larger than the sum of its proper divisors (16475289).

313030111 is a wasteful number, since it uses less digits than its factorization.

313030111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475288.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 313030111 is about 17692.6569796625. The cubic root of 313030111 is about 678.9879054155.

Adding to 313030111 its reverse (111030313), we get a palindrome (424060424).

The spelling of 313030111 in words is "three hundred thirteen million, thirty thousand, one hundred eleven".

Divisors: 1 19 16475269 313030111