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30809724300 = 22335288312923
BaseRepresentation
bin11100101100011001…
…110001010110001100
32221112011221011022000
4130230121301112030
51001044242134200
622053115152300
72140331223045
oct345431612614
987464834260
1030809724300
1112080316973
125b7a145690
132ba00711c4
1416c3bc58cc
15c04c72300
hex72c67158c

30809724300 has 144 divisors (see below), whose sum is σ = 99167402880. Its totient is φ = 8205986880.

The previous prime is 30809724271. The next prime is 30809724301. The reversal of 30809724300 is 342790803.

It is a super-2 number, since 2×308097243002 (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (30809724301) 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 47 ways as a sum of consecutive naturals, for example, 2377639 + ... + 2390561.

It is an arithmetic number, because the mean of its divisors is an integer number (688662520).

Almost surely, 230809724300 is an apocalyptic number.

30809724300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30809724300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49583701440).

30809724300 is an abundant number, since it is smaller than the sum of its proper divisors (68357678580).

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

30809724300 is a wasteful number, since it uses less digits than its factorization.

30809724300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13816 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 30809724300 in words is "thirty billion, eight hundred nine million, seven hundred twenty-four thousand, three hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 108 135 150 180 225 270 300 450 540 675 883 900 1350 1766 2649 2700 3532 4415 5298 7947 8830 10596 12923 13245 15894 17660 22075 23841 25846 26490 31788 38769 39735 44150 47682 51692 52980 64615 66225 77538 79470 88300 95364 116307 119205 129230 132450 155076 158940 193845 198675 232614 238410 258460 264900 323075 348921 387690 397350 465228 476820 581535 596025 646150 697842 775380 794700 969225 1163070 1192050 1292300 1395684 1744605 1938450 2326140 2384100 2907675 3489210 3876900 5815350 6978420 8723025 11411009 11630700 17446050 22822018 34233027 34892100 45644036 57055045 68466054 102699081 114110090 136932108 171165135 205398162 228220180 285275225 308097243 342330270 410796324 513495405 570550450 616194486 684660540 855825675 1026990810 1141100900 1232388972 1540486215 1711651350 2053981620 2567477025 3080972430 3423302700 5134954050 6161944860 7702431075 10269908100 15404862150 30809724300