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316328640 = 2635437997
BaseRepresentation
bin10010110110101…
…100101011000000
3211001020011022120
4102312230223000
51121440004030
651220004240
710560514635
oct2266545300
9731204276
10316328640
11152617431
1289b30680
13506c7114
143002418c
151cb87010
hex12dacac0

316328640 has 224 divisors, whose sum is σ = 1051438080. Its totient is φ = 80510976.

The previous prime is 316328611. The next prime is 316328657. The reversal of 316328640 is 46823613.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3261072 + ... + 3261168.

It is an arithmetic number, because the mean of its divisors is an integer number (4693920).

Almost surely, 2316328640 is an apocalyptic number.

316328640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316328640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525719040).

316328640 is an abundant number, since it is smaller than the sum of its proper divisors (735109440).

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

316328640 is a wasteful number, since it uses less digits than its factorization.

316328640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 316328640 is about 17785.6301547064. The cubic root of 316328640 is about 681.3645034927.

The spelling of 316328640 in words is "three hundred sixteen million, three hundred twenty-eight thousand, six hundred forty".