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316678990 = 2531667899
BaseRepresentation
bin10010111000000…
…010001101001110
3211001212221220111
4102320002031032
51122032211430
651231310234
710563504235
oct2270021516
9731787814
10316678990
11152836681
128a07b37a
13507ba724
14300b5b1c
151cc05c2a
hex12e0234e

316678990 has 8 divisors (see below), whose sum is σ = 570022200. Its totient is φ = 126671592.

The previous prime is 316678987. The next prime is 316678991. The reversal of 316678990 is 99876613.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316678991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15833940 + ... + 15833959.

It is an arithmetic number, because the mean of its divisors is an integer number (71252775).

Almost surely, 2316678990 is an apocalyptic number.

316678990 is a deficient number, since it is larger than the sum of its proper divisors (253343210).

316678990 is a wasteful number, since it uses less digits than its factorization.

316678990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31667906.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 316678990 is about 17795.4766724581. The cubic root of 316678990 is about 681.6159592551.

The spelling of 316678990 in words is "three hundred sixteen million, six hundred seventy-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 31667899 63335798 158339495 316678990