Search a number
-
+
316917930 = 23571509133
BaseRepresentation
bin10010111000111…
…100100010101010
3211002100002200010
4102320330202222
51122112333210
651240352350
710565520660
oct2270744252
9732302603
10316917930
1115298a14a
128a1756b6
1350872404
1430138c30
151cc51920
hex12e3c8aa

316917930 has 32 divisors (see below), whose sum is σ = 869261184. Its totient is φ = 72438336.

The previous prime is 316917907. The next prime is 316917941. The reversal of 316917930 is 39719613.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754357 + ... + 754776.

It is an arithmetic number, because the mean of its divisors is an integer number (27164412).

Almost surely, 2316917930 is an apocalyptic number.

316917930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

316917930 is an abundant number, since it is smaller than the sum of its proper divisors (552343254).

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

316917930 is a wasteful number, since it uses less digits than its factorization.

316917930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509150.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 316917930 is about 17802.1889103559. The cubic root of 316917930 is about 681.7873466621.

It can be divided in two parts, 31691 and 7930, that added together give a triangular number (39621 = T281).

The spelling of 316917930 in words is "three hundred sixteen million, nine hundred seventeen thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 1509133 3018266 4527399 7545665 9054798 10563931 15091330 21127862 22636995 31691793 45273990 52819655 63383586 105639310 158458965 316917930