Base | Representation |
---|---|
bin | 11010100001100101… |
… | …001001101100000111 |
3 | 2201111212102011200210 |
4 | 122201211021230013 |
5 | 431312023041232 |
6 | 21030035410503 |
7 | 2025530511432 |
oct | 324145115407 |
9 | 81455364623 |
10 | 28480674567 |
11 | 11095664384 |
12 | 562a153a33 |
13 | 28bb697777 |
14 | 1542754819 |
15 | b1a5635cc |
hex | 6a1949b07 |
28480674567 has 16 divisors (see below), whose sum is σ = 38922985728. Its totient is φ = 18514231680.
The previous prime is 28480674517. The next prime is 28480674581. The reversal of 28480674567 is 76547608482.
It is not a de Polignac number, because 28480674567 - 26 = 28480674503 is a prime.
It is a super-2 number, since 2×284806745672 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28480674517) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109659 + ... + 262652.
It is an arithmetic number, because the mean of its divisors is an integer number (2432686608).
Almost surely, 228480674567 is an apocalyptic number.
28480674567 is a deficient number, since it is larger than the sum of its proper divisors (10442311161).
28480674567 is a wasteful number, since it uses less digits than its factorization.
28480674567 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 372950.
The product of its (nonzero) digits is 18063360, while the sum is 57.
The spelling of 28480674567 in words is "twenty-eight billion, four hundred eighty million, six hundred seventy-four thousand, five hundred sixty-seven".
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