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827878968 = 23347229797
BaseRepresentation
bin110001010110000…
…110111000111000
32010200210121110000
4301112012320320
53143414111333
6214052153000
726341566210
oct6126067070
92120717400
10827878968
113953527a4
121b1308760
13102694617
147bd45240
154ca32713
hex31586e38

827878968 has 160 divisors (see below), whose sum is σ = 2665000800. Its totient is φ = 235208448.

The previous prime is 827878949. The next prime is 827878993. The reversal of 827878968 is 869878728.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1038346 + ... + 1039142.

It is an arithmetic number, because the mean of its divisors is an integer number (16656255).

Almost surely, 2827878968 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 827878968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332500400).

827878968 is an abundant number, since it is smaller than the sum of its proper divisors (1837121832).

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

827878968 is a wasteful number, since it uses less digits than its factorization.

827878968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1038 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The square root of 827878968 is about 28772.8859866368. The cubic root of 827878968 is about 938.9784314575.

The spelling of 827878968 in words is "eight hundred twenty-seven million, eight hundred seventy-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 229 252 324 378 458 504 567 648 687 756 797 916 1134 1374 1512 1594 1603 1832 2061 2268 2391 2748 3188 3206 4122 4536 4782 4809 5496 5579 6183 6376 6412 7173 8244 9564 9618 11158 12366 12824 14346 14427 16488 16737 18549 19128 19236 21519 22316 24732 28692 28854 33474 37098 38472 43038 43281 44632 49464 50211 57384 57708 64557 66948 74196 86076 86562 100422 115416 129114 129843 133896 148392 150633 172152 173124 182513 200844 258228 259686 301266 346248 365026 401688 451899 516456 519372 547539 602532 730052 903798 1038744 1095078 1205064 1277591 1460104 1642617 1807596 2190156 2555182 3285234 3615192 3832773 4380312 4927851 5110364 6570468 7665546 9855702 10220728 11498319 13140936 14783553 15331092 19711404 22996638 29567106 30662184 34494957 39422808 45993276 59134212 68989914 91986552 103484871 118268424 137979828 206969742 275959656 413939484 827878968