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316197856 = 25133720543
BaseRepresentation
bin10010110110001…
…100101111100000
3211000222111220201
4102312030233200
51121421312411
651213114544
710556431432
oct2266145740
9730874821
10316197856
11152538147
1289a88a54
135067c730
142ddcc652
151cb5d3c1
hex12d8cbe0

316197856 has 48 divisors (see below), whose sum is σ = 688552704. Its totient is φ = 141986304.

The previous prime is 316197853. The next prime is 316197907. The reversal of 316197856 is 658791613.

It is a happy number.

It is a super-3 number, since 3×3161978563 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316197853) 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, 5121 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (14344848).

Almost surely, 2316197856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316197856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344276352).

316197856 is an abundant number, since it is smaller than the sum of its proper divisors (372354848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316197856 is a wasteful number, since it uses less digits than its factorization.

316197856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20603 (or 20595 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 316197856 is about 17781.9530985772. The cubic root of 316197856 is about 681.2705886548.

The spelling of 316197856 in words is "three hundred sixteen million, one hundred ninety-seven thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 37 52 74 104 148 208 296 416 481 592 962 1184 1924 3848 7696 15392 20543 41086 82172 164344 267059 328688 534118 657376 760091 1068236 1520182 2136472 3040364 4272944 6080728 8545888 9881183 12161456 19762366 24322912 39524732 79049464 158098928 316197856