Search a number
-
+
830758272 = 27310720219
BaseRepresentation
bin110001100001000…
…101110110000000
32010220012220002220
4301201011312000
53200133231042
6214234011040
726405220531
oct6141056600
92126186086
10830758272
11396a39a93
121b2276a80
13103162056
147c494688
154ce008ec
hex31845d80

830758272 has 64 divisors (see below), whose sum is σ = 2227435200. Its totient is φ = 274317824.

The previous prime is 830758267. The next prime is 830758289. The reversal of 830758272 is 272857038.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30979 + ... + 51197.

It is an arithmetic number, because the mean of its divisors is an integer number (34803675).

Almost surely, 2830758272 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 830758272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113717600).

830758272 is an abundant number, since it is smaller than the sum of its proper divisors (1396676928).

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

830758272 is a wasteful number, since it uses less digits than its factorization.

830758272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20343 (or 20331 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 830758272 is about 28822.8775801446. The cubic root of 830758272 is about 940.0657385744.

The spelling of 830758272 in words is "eight hundred thirty million, seven hundred fifty-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 107 128 192 214 321 384 428 642 856 1284 1712 2568 3424 5136 6848 10272 13696 20219 20544 40438 41088 60657 80876 121314 161752 242628 323504 485256 647008 970512 1294016 1941024 2163433 2588032 3882048 4326866 6490299 7764096 8653732 12980598 17307464 25961196 34614928 51922392 69229856 103844784 138459712 207689568 276919424 415379136 830758272