Base | Representation |
---|---|
bin | 101010100011111… |
… | …1000101011100000 |
3 | 10200112021112210021 |
4 | 1111013320223200 |
5 | 10411100134103 |
6 | 353413443224 |
7 | 50250623566 |
oct | 12507705340 |
9 | 3615245707 |
10 | 1428130528 |
11 | 673162670 |
12 | 33a340514 |
13 | 199b4a866 |
14 | d7955a36 |
15 | 8559ebbd |
hex | 551f8ae0 |
1428130528 has 48 divisors (see below), whose sum is σ = 3071038320. Its totient is φ = 648345600.
The previous prime is 1428130523. The next prime is 1428130601. The reversal of 1428130528 is 8250318241.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 1428130493 and 1428130502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1428130523) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353158 + ... + 357178.
It is an arithmetic number, because the mean of its divisors is an integer number (63979965).
Almost surely, 21428130528 is an apocalyptic number.
It is an amenable number.
1428130528 is an abundant number, since it is smaller than the sum of its proper divisors (1642907792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1428130528 is a wasteful number, since it uses less digits than its factorization.
1428130528 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5051 (or 5043 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 34.
The square root of 1428130528 is about 37790.6142845019. The cubic root of 1428130528 is about 1126.1320037438.
Adding to 1428130528 its reverse (8250318241), we get a palindrome (9678448769).
The spelling of 1428130528 in words is "one billion, four hundred twenty-eight million, one hundred thirty thousand, five hundred twenty-eight".
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