Search a number
-
+
318934106987 = 1273977518423
BaseRepresentation
bin1001010010000011111…
…01000100001101101011
31010111020001210022122212
410221001331010031223
520211134112410422
6402303304435335
732020325115416
oct4510175041553
91114201708585
10318934106987
11113293a97101
125198a478b4b
13240c9738002
1411617a46b7d
158469a7e9e2
hex4a41f4436b

318934106987 has 16 divisors (see below), whose sum is σ = 322722496512. Its totient is φ = 315168084000.

The previous prime is 318934106941. The next prime is 318934107017. The reversal of 318934106987 is 789601439813.

It is a cyclic number.

It is not a de Polignac number, because 318934106987 - 28 = 318934106731 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318934106087) 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, 37860458 + ... + 37868880.

It is an arithmetic number, because the mean of its divisors is an integer number (20170156032).

Almost surely, 2318934106987 is an apocalyptic number.

318934106987 is a deficient number, since it is larger than the sum of its proper divisors (3788389525).

318934106987 is a wasteful number, since it uses less digits than its factorization.

318934106987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9698.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 318934106987 in words is "three hundred eighteen billion, nine hundred thirty-four million, one hundred six thousand, nine hundred eighty-seven".

Divisors: 1 127 397 751 8423 50419 95377 298147 1069721 3343931 6325673 37864669 424679237 803360471 2511292181 318934106987