Search a number
-
+
18499965030 = 2345191202077
BaseRepresentation
bin10001001110101011…
…110001000001100110
31202202021221121010000
4101032223301001212
5300341442340110
612255422242130
71223306052051
oct211653610146
952667847100
1018499965030
1179338255a8
123703726346
13198a9a2791
14c76db3a98
157342161c0
hex44eaf1066

18499965030 has 80 divisors (see below), whose sum is σ = 52362517680. Its totient is φ = 4673671488.

The previous prime is 18499964999. The next prime is 18499965031. The reversal of 18499965030 is 3056999481.

18499965030 is a `hidden beast` number, since 1 + 8 + 49 + 9 + 96 + 503 + 0 = 666.

It is a super-2 number, since 2×184999650302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18499965031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 585649 + ... + 616428.

It is an arithmetic number, because the mean of its divisors is an integer number (654531471).

Almost surely, 218499965030 is an apocalyptic number.

18499965030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18499965030 is an abundant number, since it is smaller than the sum of its proper divisors (33862552650).

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

18499965030 is a wasteful number, since it uses less digits than its factorization.

18499965030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202115 (or 1202106 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 18499965030 in words is "eighteen billion, four hundred ninety-nine million, nine hundred sixty-five thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 81 90 95 114 135 162 171 190 270 285 342 405 513 570 810 855 1026 1539 1710 2565 3078 5130 7695 15390 1202077 2404154 3606231 6010385 7212462 10818693 12020770 18031155 21637386 22839463 32456079 36062310 45678926 54093465 64912158 68518389 97368237 108186930 114197315 137036778 162280395 194736474 205555167 228394630 324560790 342591945 411110334 486841185 616665501 685183890 973682370 1027775835 1233331002 1849996503 2055551670 3083327505 3699993006 6166655010 9249982515 18499965030