Search a number
-
+
6918972708 = 2233119197379
BaseRepresentation
bin1100111000110011…
…10010010100100100
3122212012021020020110
412130121302110210
5103132224111313
63102321333020
7333313204044
oct63431622444
918765236213
106918972708
112a3064166a
121411197170
138635a60bb
14498ca7724
152a7660ec3
hex19c672524

6918972708 has 48 divisors (see below), whose sum is σ = 16752476160. Its totient is φ = 2220218400.

The previous prime is 6918972701. The next prime is 6918972737. The reversal of 6918972708 is 8072798196.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6918972701) 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, 22363 + ... + 119741.

It is an arithmetic number, because the mean of its divisors is an integer number (349009920).

Almost surely, 26918972708 is an apocalyptic number.

It is an amenable number.

6918972708 is an abundant number, since it is smaller than the sum of its proper divisors (9833503452).

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

6918972708 is a wasteful number, since it uses less digits than its factorization.

6918972708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97608 (or 97606 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 6918972708 is about 83180.3625142377. The cubic root of 6918972708 is about 1905.5215843641.

The spelling of 6918972708 in words is "six billion, nine hundred eighteen million, nine hundred seventy-two thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 191 372 382 573 764 1146 2292 5921 11842 17763 23684 35526 71052 97379 194758 292137 389516 584274 1168548 3018749 6037498 9056247 12074996 18112494 18599389 36224988 37198778 55798167 74397556 111596334 223192668 576581059 1153162118 1729743177 2306324236 3459486354 6918972708