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18040060810180 = 22529162593191297
BaseRepresentation
bin1000001101000010001110…
…11010101001001111000100
32100212121112212002200002001
410012201013122221033010
54331032021031411210
6102211253423155044
73541231344544513
oct406410732511704
970777485080061
1018040060810180
115825824029942
12203434ba45a84
13a0b22a5a3896
1446520208867a
152143e3da303a
hex1068476a93c4

18040060810180 has 48 divisors (see below), whose sum is σ = 39190922835120. Its totient is φ = 6967116627968.

The previous prime is 18040060810147. The next prime is 18040060810181. The reversal of 18040060810180 is 8101806004081.

It can be written as a sum of positive squares in 8 ways, for example, as 1491290361856 + 16548770448324 = 1221184^2 + 4068018^2 .

It is not an unprimeable number, because it can be changed into a prime (18040060810181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94208292 + ... + 94399588.

It is an arithmetic number, because the mean of its divisors is an integer number (816477559065).

Almost surely, 218040060810180 is an apocalyptic number.

18040060810180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18040060810180 is an abundant number, since it is smaller than the sum of its proper divisors (21150862024940).

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

18040060810180 is a wasteful number, since it uses less digits than its factorization.

18040060810180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353928 (or 353926 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 37.

The spelling of 18040060810180 in words is "eighteen trillion, forty billion, sixty million, eight hundred ten thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 162593 191297 325186 382594 650372 765188 812965 956485 1625930 1912970 3251860 3825940 4715197 5547613 9430394 11095226 18860788 22190452 23575985 27738065 47151970 55476130 94303940 110952260 31103553121 62207106242 124414212484 155517765605 311035531210 622071062420 902003040509 1804006081018 3608012162036 4510015202545 9020030405090 18040060810180