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830428272 = 2432109191277
BaseRepresentation
bin110001011111110…
…101010001110000
32010212121010102200
4301133311101300
53200042201042
6214222543200
726402344452
oct6137652160
92125533380
10830428272
11396834063
121b2137b00
13103077a9b
147c40a2d2
154cd87c4c
hex317f5470

830428272 has 120 divisors (see below), whose sum is σ = 2366158080. Its totient is φ = 271848960.

The previous prime is 830428267. The next prime is 830428297. The reversal of 830428272 is 272824038.

830428272 is a `hidden beast` number, since 8 + 304 + 282 + 72 = 666.

It is a super-2 number, since 2×8304282722 = 1379222229873811968, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2997798 + ... + 2998074.

It is an arithmetic number, because the mean of its divisors is an integer number (19717984).

Almost surely, 2830428272 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 830428272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183079040).

830428272 is an abundant number, since it is smaller than the sum of its proper divisors (1535729808).

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

830428272 is a wasteful number, since it uses less digits than its factorization.

830428272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 830428272 is about 28817.1523922819. The cubic root of 830428272 is about 939.9412487801.

The spelling of 830428272 in words is "eight hundred thirty million, four hundred twenty-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 109 144 191 218 277 327 382 436 554 573 654 764 831 872 981 1108 1146 1308 1528 1662 1719 1744 1962 2216 2292 2493 2616 3056 3324 3438 3924 4432 4584 4986 5232 6648 6876 7848 9168 9972 13296 13752 15696 19944 20819 27504 30193 39888 41638 52907 60386 62457 83276 90579 105814 120772 124914 158721 166552 181158 187371 211628 241544 249828 271737 317442 333104 362316 374742 423256 476163 483088 499656 543474 634884 724632 749484 846512 952326 999312 1086948 1269768 1449264 1498968 1904652 2173896 2539536 2997936 3809304 4347792 5766863 7618608 11533726 17300589 23067452 34601178 46134904 51901767 69202356 92269808 103803534 138404712 207607068 276809424 415214136 830428272