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18029075760 = 24325199712539
BaseRepresentation
bin10000110010100111…
…011101110100110000
31201112110212221110200
4100302213131310300
5243410420411020
612141001355200
71205530421043
oct206247356460
951473787420
1018029075760
117711a41513
1235b1a98b00
131914270987
14c30638c5a
15707bed590
hex4329ddd30

18029075760 has 120 divisors (see below), whose sum is σ = 60582796560. Its totient is φ = 4804962816.

The previous prime is 18029075719. The next prime is 18029075777. The reversal of 18029075760 is 6757092081.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1431571 + ... + 1444109.

It is an arithmetic number, because the mean of its divisors is an integer number (504856638).

Almost surely, 218029075760 is an apocalyptic number.

18029075760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18029075760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30291398280).

18029075760 is an abundant number, since it is smaller than the sum of its proper divisors (42553720800).

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

18029075760 is a wasteful number, since it uses less digits than its factorization.

18029075760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555 (or 14546 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 18029075760 in words is "eighteen billion, twenty-nine million, seventy-five thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 1997 3994 5991 7988 9985 11982 12539 15976 17973 19970 23964 25078 29955 31952 35946 37617 39940 47928 50156 59910 62695 71892 75234 79880 89865 95856 100312 112851 119820 125390 143784 150468 159760 179730 188085 200624 225702 239640 250780 287568 300936 359460 376170 451404 479280 501560 564255 601872 718920 752340 902808 1003120 1128510 1437840 1504680 1805616 2257020 3009360 4514040 9028080 25040383 50080766 75121149 100161532 125201915 150242298 200323064 225363447 250403830 300484596 375605745 400646128 450726894 500807660 600969192 751211490 901453788 1001615320 1126817235 1201938384 1502422980 1802907576 2003230640 2253634470 3004845960 3605815152 4507268940 6009691920 9014537880 18029075760