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18422744004 = 223478122903
BaseRepresentation
bin10001001010000101…
…001100001111000100
31202112220122100210000
4101022011030033010
5300212210302004
612244023201300
71221350511630
oct211205141704
952486570700
1018422744004
1178a4182275
1236a18a6230
1319779a6272
14c6aa31dc0
1572c560c39
hex44a14c3c4

18422744004 has 60 divisors (see below), whose sum is σ = 55040797504. Its totient is φ = 5263640496.

The previous prime is 18422743951. The next prime is 18422744023. The reversal of 18422744004 is 40044722481.

18422744004 is a `hidden beast` number, since 184 + 2 + 2 + 74 + 400 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18422744004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4059184 + ... + 4063719.

Almost surely, 218422744004 is an apocalyptic number.

18422744004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18422744004 is an abundant number, since it is smaller than the sum of its proper divisors (36618053500).

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

18422744004 is a wasteful number, since it uses less digits than its factorization.

18422744004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122926 (or 8122915 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The spelling of 18422744004 in words is "eighteen billion, four hundred twenty-two million, seven hundred forty-four thousand, four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 252 324 378 567 756 1134 2268 8122903 16245806 24368709 32491612 48737418 56860321 73106127 97474836 113720642 146212254 170580963 219318381 227441284 292424508 341161926 438636762 511742889 657955143 682323852 877273524 1023485778 1315910286 1535228667 2046971556 2631820572 3070457334 4605686001 6140914668 9211372002 18422744004