Base | Representation |
---|---|
bin | 1010100010010100… |
… | …0010000011011100 |
3 | 21022002220111211011 |
4 | 2220211002003130 |
5 | 21243014430103 |
6 | 1144351505004 |
7 | 130041661240 |
oct | 25045020334 |
9 | 7262814734 |
10 | 2828280028 |
11 | 1221543712 |
12 | 66b228164 |
13 | 360c4c3a2 |
14 | 1cb8a6420 |
15 | 118473d6d |
hex | a89420dc |
2828280028 has 24 divisors (see below), whose sum is σ = 5674765824. Its totient is φ = 1208218800.
The previous prime is 2828280019. The next prime is 2828280047. The reversal of 2828280028 is 8200828282.
It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153688 + ... + 171103.
It is an arithmetic number, because the mean of its divisors is an integer number (236448576).
Almost surely, 22828280028 is an apocalyptic number.
2828280028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
2828280028 is an abundant number, since it is smaller than the sum of its proper divisors (2846485796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2828280028 is a wasteful number, since it uses less digits than its factorization.
2828280028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 325113 (or 325111 counting only the distinct ones).
The product of its (nonzero) digits is 65536, while the sum is 40.
The square root of 2828280028 is about 53181.5760202723. The cubic root of 2828280028 is about 1414.1890458237.
The spelling of 2828280028 in words is "two billion, eight hundred twenty-eight million, two hundred eighty thousand, twenty-eight".
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