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313365631 = 1394495021
BaseRepresentation
bin10010101011011…
…001010001111111
3210211122121211111
4102223121101333
51120210200011
651032302451
710523364265
oct2253312177
9724577744
10313365631
11150983267
1288b41a27
134cbca567
142d892435
151c79e121
hex12ad947f

313365631 has 8 divisors (see below), whose sum is σ = 316386000. Its totient is φ = 310356480.

The previous prime is 313365629. The next prime is 313365643. The reversal of 313365631 is 136563313.

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 313365631 - 21 = 313365629 is a prime.

It is a super-2 number, since 2×3133656312 = 196396037384056322, 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 = 313365593 and 313365602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313365431) 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, 59901 + ... + 64921.

It is an arithmetic number, because the mean of its divisors is an integer number (39548250).

Almost surely, 2313365631 is an apocalyptic number.

313365631 is a deficient number, since it is larger than the sum of its proper divisors (3020369).

313365631 is a wasteful number, since it uses less digits than its factorization.

313365631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609.

The product of its digits is 14580, while the sum is 31.

The square root of 313365631 is about 17702.1363400015. The cubic root of 313365631 is about 679.2304088985.

The spelling of 313365631 in words is "three hundred thirteen million, three hundred sixty-five thousand, six hundred thirty-one".

Divisors: 1 139 449 5021 62411 697919 2254429 313365631