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19245748104 = 23321131783877
BaseRepresentation
bin10001111011001000…
…101100111110001000
31211200021021022011100
4101323020230332020
5303403402414404
612501423101400
71250633105532
oct217310547610
954607238140
1019245748104
1181867a5450
123891441860
131a79351a3b
14d08068852
1577992dd39
hex47b22cf88

19245748104 has 96 divisors (see below), whose sum is σ = 58696784640. Its totient is φ = 5643907200.

The previous prime is 19245748103. The next prime is 19245748121. The reversal of 19245748104 is 40184754291.

19245748104 is a `hidden beast` number, since 1 + 92 + 457 + 4 + 8 + 104 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19245748104.

It is not an unprimeable number, because it can be changed into a prime (19245748103) 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 23 ways as a sum of consecutive naturals, for example, 367387 + ... + 416490.

It is an arithmetic number, because the mean of its divisors is an integer number (611424840).

Almost surely, 219245748104 is an apocalyptic number.

It is an amenable number.

19245748104 is an abundant number, since it is smaller than the sum of its proper divisors (39451036536).

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

19245748104 is a wasteful number, since it uses less digits than its factorization.

19245748104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783931 (or 783924 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 19245748104 in words is "nineteen billion, two hundred forty-five million, seven hundred forty-eight thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 31 33 36 44 62 66 72 88 93 99 124 132 186 198 248 264 279 341 372 396 558 682 744 792 1023 1116 1364 2046 2232 2728 3069 4092 6138 8184 12276 24552 783877 1567754 2351631 3135508 4703262 6271016 7054893 8622647 9406524 14109786 17245294 18813048 24300187 25867941 28219572 34490588 48600374 51735882 56439144 68981176 72900561 77603823 97200748 103471764 145801122 155207646 194401496 206943528 218701683 267302057 291602244 310415292 437403366 534604114 583204488 620830584 801906171 874806732 1069208228 1603812342 1749613464 2138416456 2405718513 3207624684 4811437026 6415249368 9622874052 19245748104