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830825028 = 2232114914273
BaseRepresentation
bin110001100001010…
…110001001000100
32010220100021200100
4301201112021010
53200142400103
6214235244100
726405616255
oct6141261104
92126307610
10830825028
11396a85160
121b22a9630
13103186557
147c4b0b2c
154ce155a3
hex31856244

830825028 has 72 divisors (see below), whose sum is σ = 2296266336. Its totient is φ = 251193600.

The previous prime is 830825011. The next prime is 830825029. The reversal of 830825028 is 820528038.

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

It is a junction number, because it is equal to n+sod(n) for n = 830824983 and 830825001.

It is not an unprimeable number, because it can be changed into a prime (830825029) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 192300 + ... + 196572.

It is an arithmetic number, because the mean of its divisors is an integer number (31892588).

Almost surely, 2830825028 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 830825028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148133168).

830825028 is an abundant number, since it is smaller than the sum of its proper divisors (1465441308).

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

830825028 is a wasteful number, since it uses less digits than its factorization.

830825028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785 (or 4780 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 830825028 is about 28824.0355953152. The cubic root of 830825028 is about 940.0909177188.

The spelling of 830825028 in words is "eight hundred thirty million, eight hundred twenty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 491 982 1473 1964 2946 4273 4419 5401 5892 8546 8838 10802 12819 16203 17092 17676 21604 25638 32406 38457 47003 48609 51276 64812 76914 94006 97218 141009 153828 188012 194436 282018 423027 564036 846054 1692108 2098043 4196086 6294129 8392172 12588258 18882387 23078473 25176516 37764774 46156946 69235419 75529548 92313892 138470838 207706257 276941676 415412514 830825028