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306130886 = 21259121577
BaseRepresentation
bin10010001111110…
…010111111000110
3210100001001121222
4102033302333012
51111332142021
650213240342
710405032605
oct2217627706
9710031558
10306130886
11147891736
12866330b2
134b566549
142c92ba3c
151bd206ab
hex123f2fc6

306130886 has 8 divisors (see below), whose sum is σ = 459564840. Its totient is φ = 152942608.

The previous prime is 306130871. The next prime is 306130949. The reversal of 306130886 is 688031603.

It is a happy number.

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

It is a super-2 number, since 2×3061308862 = 187432238726289992, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 58271 + ... + 63306.

It is an arithmetic number, because the mean of its divisors is an integer number (57445605).

Almost surely, 2306130886 is an apocalyptic number.

306130886 is a deficient number, since it is larger than the sum of its proper divisors (153433954).

306130886 is a wasteful number, since it uses less digits than its factorization.

306130886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122838.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 306130886 is about 17496.5964118739. The cubic root of 306130886 is about 673.9624744669.

The spelling of 306130886 in words is "three hundred six million, one hundred thirty thousand, eight hundred eighty-six".

Divisors: 1 2 1259 2518 121577 243154 153065443 306130886