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316355031 = 3331377963
BaseRepresentation
bin10010110110110…
…011000111010111
3211001021111112000
4102312303013113
51121441330111
651220330343
710560654606
oct2266630727
9731244460
10316355031
11152635243
1289b439b3
1350706135
143002da3d
151cb8ec56
hex12db31d7

316355031 has 16 divisors (see below), whose sum is σ = 483793920. Its totient is φ = 204099480.

The previous prime is 316354993. The next prime is 316355033. The reversal of 316355031 is 130553613.

It is not a de Polignac number, because 316355031 - 213 = 316346839 is a prime.

It is a super-2 number, since 2×3163550312 = 200161011278021922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 316354986 and 316355004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316355033) 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 15 ways as a sum of consecutive naturals, for example, 188145 + ... + 189818.

It is an arithmetic number, because the mean of its divisors is an integer number (30237120).

Almost surely, 2316355031 is an apocalyptic number.

316355031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

316355031 is a deficient number, since it is larger than the sum of its proper divisors (167438889).

316355031 is a wasteful number, since it uses less digits than its factorization.

316355031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378003 (or 377997 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 316355031 is about 17786.3720584047. The cubic root of 316355031 is about 681.3834514984.

The spelling of 316355031 in words is "three hundred sixteen million, three hundred fifty-five thousand, thirty-one".

Divisors: 1 3 9 27 31 93 279 837 377963 1133889 3401667 10205001 11716853 35150559 105451677 316355031