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20452118304 = 2531879113381
BaseRepresentation
bin10011000011000010…
…101000111100100000
31221210100021020222010
4103003002220330200
5313341220241204
613221235512520
71322552065032
oct230302507440
957710236863
1020452118304
118745762212
123b69458740
131c0c266867
14dc0375c52
157ea7c6d89
hex4c30a8f20

20452118304 has 48 divisors (see below), whose sum is σ = 53715856320. Its totient is φ = 6813684480.

The previous prime is 20452118279. The next prime is 20452118327. The reversal of 20452118304 is 40381125402.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 123694 + ... + 237074.

It is an arithmetic number, because the mean of its divisors is an integer number (1119080340).

Almost surely, 220452118304 is an apocalyptic number.

20452118304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20452118304 is an abundant number, since it is smaller than the sum of its proper divisors (33263738016).

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

20452118304 is a wasteful number, since it uses less digits than its factorization.

20452118304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115273 (or 115265 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 20452118304 in words is "twenty billion, four hundred fifty-two million, one hundred eighteen thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1879 3758 5637 7516 11274 15032 22548 30064 45096 60128 90192 113381 180384 226762 340143 453524 680286 907048 1360572 1814096 2721144 3628192 5442288 10884576 213042899 426085798 639128697 852171596 1278257394 1704343192 2556514788 3408686384 5113029576 6817372768 10226059152 20452118304