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830905180 = 225741144757
BaseRepresentation
bin110001100001101…
…001101101011100
32010220111100121221
4301201221231130
53200202431210
6214241103124
726406402040
oct6141515534
92126440557
10830905180
1139702a3a6
121b2327aa4
131031b3b91
147c4d2020
154ce2e1da
hex31869b5c

830905180 has 48 divisors (see below), whose sum is σ = 2042824896. Its totient is φ = 277931520.

The previous prime is 830905171. The next prime is 830905213. The reversal of 830905180 is 81509038.

830905180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 66639 + ... + 78118.

It is an arithmetic number, because the mean of its divisors is an integer number (42558852).

Almost surely, 2830905180 is an apocalyptic number.

It is an amenable number.

830905180 is an abundant number, since it is smaller than the sum of its proper divisors (1211919716).

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

830905180 is a wasteful number, since it uses less digits than its factorization.

830905180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144814 (or 144812 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 830905180 is about 28825.4259292035. The cubic root of 830905180 is about 940.1211478081.

The spelling of 830905180 in words is "eight hundred thirty million, nine hundred five thousand, one hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 41 70 82 140 164 205 287 410 574 820 1148 1435 2870 5740 144757 289514 579028 723785 1013299 1447570 2026598 2895140 4053196 5066495 5935037 10132990 11870074 20265980 23740148 29675185 41545259 59350370 83090518 118700740 166181036 207726295 415452590 830905180