Search a number
-
+
18064685912088 = 2331780953546937
BaseRepresentation
bin1000001101110000000110…
…01011111101000000011000
32100221222010000120110101110
410012320003023331000120
54331432434043141323
6102230445132420320
73543062520502524
oct406700313750030
970858100513343
1018064685912088
115835210285432
1220390829176a0
13a106532471ba
1446649a722d84
15214d85bbe793
hex106e032fd018

18064685912088 has 64 divisors (see below), whose sum is σ = 47818964360160. Its totient is φ = 5667272073216.

The previous prime is 18064685911981. The next prime is 18064685912149. The reversal of 18064685912088 is 88021958646081.

It is a congruent 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, 32755356 + ... + 33302292.

Almost surely, 218064685912088 is an apocalyptic number.

It is an amenable number.

18064685912088 is an abundant number, since it is smaller than the sum of its proper divisors (29754278448072).

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

18064685912088 is a wasteful number, since it uses less digits than its factorization.

18064685912088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627916 (or 627912 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 66.

The spelling of 18064685912088 in words is "eighteen trillion, sixty-four billion, six hundred eighty-five million, nine hundred twelve thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 80953 161906 242859 323812 485718 546937 647624 971436 1093874 1376201 1640811 1942872 2187748 2752402 3281622 4128603 4375496 5504804 6563244 8257206 9297929 11009608 13126488 16514412 18595858 27893787 33028824 37191716 55787574 74383432 111575148 223150296 44276190961 88552381922 132828572883 177104763844 265657145766 354209527688 531314291532 752695246337 1062628583064 1505390492674 2258085739011 3010780985348 4516171478022 6021561970696 9032342956044 18064685912088