Search a number
-
+
987306164 = 2213178910613
BaseRepresentation
bin111010110110010…
…001100010110100
32112210210100102222
4322312101202310
54010222244124
6241545221512
733315651425
oct7266214264
92483710388
10987306164
11467343809
12236791898
13129714440
14951a564c
155ba2525e
hex3ad918b4

987306164 has 24 divisors (see below), whose sum is σ = 1861907880. Its totient is φ = 455382144.

The previous prime is 987306157. The next prime is 987306179. The reversal of 987306164 is 461603789.

987306164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 552250000 + 435056164 = 23500^2 + 20858^2 .

It is a super-2 number, since 2×9873061642 = 1949546922944789792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87722 + ... + 98334.

It is an arithmetic number, because the mean of its divisors is an integer number (77579495).

Almost surely, 2987306164 is an apocalyptic number.

It is an amenable number.

987306164 is a deficient number, since it is larger than the sum of its proper divisors (874601716).

987306164 is a wasteful number, since it uses less digits than its factorization.

987306164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12419 (or 12417 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 987306164 is about 31421.4284207450. The cubic root of 987306164 is about 995.7506902763.

The spelling of 987306164 in words is "nine hundred eighty-seven million, three hundred six thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 1789 3578 7156 10613 21226 23257 42452 46514 93028 137969 275938 551876 18986657 37973314 75946628 246826541 493653082 987306164