Search a number
-
+
318807071 = 11236311997
BaseRepresentation
bin10011000000001…
…001110000011111
3211012220002002022
4103000021300133
51123103311241
651345050355
710620546452
oct2300116037
9735802068
10318807071
11153a5a520
128a9269bb
135108424b
14304ab499
151cec654b
hex13009c1f

318807071 has 16 divisors (see below), whose sum is σ = 363667968. Its totient is φ = 276645600.

The previous prime is 318807043. The next prime is 318807109. The reversal of 318807071 is 170708813.

It is not a de Polignac number, because 318807071 - 218 = 318544927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318807011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158645 + ... + 160641.

It is an arithmetic number, because the mean of its divisors is an integer number (22729248).

Almost surely, 2318807071 is an apocalyptic number.

318807071 is a deficient number, since it is larger than the sum of its proper divisors (44860897).

318807071 is a wasteful number, since it uses less digits than its factorization.

318807071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 318807071 is about 17855.1693075143. The cubic root of 318807071 is about 683.1393703441.

The spelling of 318807071 in words is "three hundred eighteen million, eight hundred seven thousand, seventy-one".

Divisors: 1 11 23 253 631 1997 6941 14513 21967 45931 159643 505241 1260107 13861177 28982461 318807071