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30833660850 = 23522361146513
BaseRepresentation
bin11100101101110101…
…000101001110110010
32221120211222021001220
4130231311011032302
51001121404121400
622055332205510
72141041535646
oct345565051662
987524867056
1030833660850
1112092885843
125b86169896
132ba5002345
1416c7056c26
15c06dee7a0
hex72dd453b2

30833660850 has 96 divisors (see below), whose sum is σ = 81100773504. Its totient is φ = 7735833600.

The previous prime is 30833660833. The next prime is 30833660857. The reversal of 30833660850 is 5806633803.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30833660857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137194 + ... + 283706.

It is an arithmetic number, because the mean of its divisors is an integer number (844799724).

Almost surely, 230833660850 is an apocalyptic number.

30833660850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30833660850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40550386752).

30833660850 is an abundant number, since it is smaller than the sum of its proper divisors (50267112654).

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

30833660850 is a wasteful number, since it uses less digits than its factorization.

30833660850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146612 (or 146607 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 30833660850 in words is "thirty billion, eight hundred thirty-three million, six hundred sixty thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 23 25 30 46 50 61 69 75 115 122 138 150 183 230 305 345 366 575 610 690 915 1150 1403 1525 1725 1830 2806 3050 3450 4209 4575 7015 8418 9150 14030 21045 35075 42090 70150 105225 146513 210450 293026 439539 732565 879078 1465130 2197695 3369799 3662825 4395390 6739598 7325650 8937293 10109397 10988475 16848995 17874586 20218794 21976950 26811879 33697990 44686465 50546985 53623758 84244975 89372930 101093970 134059395 168489950 205557739 223432325 252734925 268118790 411115478 446864650 505469850 616673217 670296975 1027788695 1233346434 1340593950 2055577390 3083366085 5138943475 6166732170 10277886950 15416830425 30833660850