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30843794968 = 23731163109001
BaseRepresentation
bin11100101110011011…
…101111011000011000
32221121120001010110121
4130232123233120120
51001132002414333
622100333323024
72141223634330
oct345633573030
987546033417
1030843794968
1112098577748
125b89636474
132ba713cc6c
1416c85340c0
15c07c5232d
hex72e6ef618

30843794968 has 64 divisors (see below), whose sum is σ = 68645099520. Its totient is φ = 12713760000.

The previous prime is 30843794957. The next prime is 30843794987. The reversal of 30843794968 is 86949734803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228468 + ... + 337468.

It is an arithmetic number, because the mean of its divisors is an integer number (1072579680).

Almost surely, 230843794968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30843794968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34322549760).

30843794968 is an abundant number, since it is smaller than the sum of its proper divisors (37801304552).

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

30843794968 is a wasteful number, since it uses less digits than its factorization.

30843794968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109208 (or 109204 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 30843794968 in words is "thirty billion, eight hundred forty-three million, seven hundred ninety-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 163 217 248 326 434 652 868 1141 1304 1736 2282 4564 5053 9128 10106 20212 35371 40424 70742 109001 141484 218002 282968 436004 763007 872008 1526014 3052028 3379031 6104056 6758062 13516124 17767163 23653217 27032248 35534326 47306434 71068652 94612868 124370141 142137304 189225736 248740282 497480564 550782053 994961128 1101564106 2203128212 3855474371 4406256424 7710948742 15421897484 30843794968