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18129419160 = 2335151078493
BaseRepresentation
bin10000111000100110…
…001111101110011000
31201210110200220201220
4100320212033232120
5244112112403120
612154544212040
71211156343306
oct207046175630
951713626656
1018129419160
117763647a46
12361b60a020
13192bca4878
14c3dab9276
1571191eb40
hex43898fb98

18129419160 has 32 divisors (see below), whose sum is σ = 54388257840. Its totient is φ = 4834511744.

The previous prime is 18129419149. The next prime is 18129419167. The reversal of 18129419160 is 6191492181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18129419167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75539127 + ... + 75539366.

Almost surely, 218129419160 is an apocalyptic number.

18129419160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18129419160 is an abundant number, since it is smaller than the sum of its proper divisors (36258838680).

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

18129419160 is a wasteful number, since it uses less digits than its factorization.

18129419160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151078507 (or 151078503 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 18129419160 in words is "eighteen billion, one hundred twenty-nine million, four hundred nineteen thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 151078493 302156986 453235479 604313972 755392465 906470958 1208627944 1510784930 1812941916 2266177395 3021569860 3625883832 4532354790 6043139720 9064709580 18129419160