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19369165250 = 2531929140611
BaseRepresentation
bin10010000010011111…
…100000000111000010
31211222212111112122202
4102002133200013002
5304132001242000
612521552233202
71253662121351
oct220237400702
954885445582
1019369165250
11823a430596
12390683b802
131a98aa4136
14d1a5d3998
157856abdd5
hex4827e01c2

19369165250 has 64 divisors (see below), whose sum is σ = 39483849600. Its totient is φ = 7086744000.

The previous prime is 19369165243. The next prime is 19369165259. The reversal of 19369165250 is 5256196391.

It is a junction number, because it is equal to n+sod(n) for n = 19369165195 and 19369165204.

It is not an unprimeable number, because it can be changed into a prime (19369165259) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 67445 + ... + 208055.

It is an arithmetic number, because the mean of its divisors is an integer number (616935150).

Almost surely, 219369165250 is an apocalyptic number.

19369165250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19369165250 is an abundant number, since it is smaller than the sum of its proper divisors (20114684350).

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

19369165250 is a wasteful number, since it uses less digits than its factorization.

19369165250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140676 (or 140666 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 47.

The spelling of 19369165250 in words is "nineteen billion, three hundred sixty-nine million, one hundred sixty-five thousand, two hundred fifty".

Divisors: 1 2 5 10 19 25 29 38 50 58 95 125 145 190 250 290 475 551 725 950 1102 1450 2375 2755 3625 4750 5510 7250 13775 27550 68875 137750 140611 281222 703055 1406110 2671609 3515275 4077719 5343218 7030550 8155438 13358045 17576375 20388595 26716090 35152750 40777190 66790225 77476661 101942975 133580450 154953322 203885950 333951125 387383305 509714875 667902250 774766610 1019429750 1936916525 3873833050 9684582625 19369165250