Base | Representation |
---|---|
bin | 11010100111000011… |
… | …011000111101101010 |
3 | 2201202021011202101220 |
4 | 122213003120331222 |
5 | 432004024100110 |
6 | 21043115322510 |
7 | 2031024064626 |
oct | 324703307552 |
9 | 81667152356 |
10 | 28572487530 |
11 | 11132473864 |
12 | 5654a50436 |
13 | 2904702972 |
14 | 1550a14186 |
15 | b2364c370 |
hex | 6a70d8f6a |
28572487530 has 16 divisors (see below), whose sum is σ = 68573970144. Its totient is φ = 7619330000.
The previous prime is 28572487513. The next prime is 28572487577. The reversal of 28572487530 is 3578427582.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476208096 + ... + 476208155.
It is an arithmetic number, because the mean of its divisors is an integer number (4285873134).
Almost surely, 228572487530 is an apocalyptic number.
28572487530 is an abundant number, since it is smaller than the sum of its proper divisors (40001482614).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28572487530 is a wasteful number, since it uses less digits than its factorization.
28572487530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 952416261.
The product of its (nonzero) digits is 3763200, while the sum is 51.
The spelling of 28572487530 in words is "twenty-eight billion, five hundred seventy-two million, four hundred eighty-seven thousand, five hundred thirty".
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