Base | Representation |
---|---|
bin | 11010001001100001… |
… | …010010110100110110 |
3 | 2200110201211220022210 |
4 | 122021201102310312 |
5 | 430000203311410 |
6 | 20522015434250 |
7 | 2012526435453 |
oct | 321141226466 |
9 | 80421756283 |
10 | 28077010230 |
11 | 109a8816395 |
12 | 5536b25986 |
13 | 2855b72329 |
14 | 1504cb882a |
15 | ae4dc9220 |
hex | 689852d36 |
28077010230 has 32 divisors (see below), whose sum is σ = 68656240224. Its totient is φ = 7345934336.
The previous prime is 28077010193. The next prime is 28077010231. The reversal of 28077010230 is 3201077082.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28077010231) 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, 8827659 + ... + 8830838.
It is an arithmetic number, because the mean of its divisors is an integer number (2145507507).
Almost surely, 228077010230 is an apocalyptic number.
28077010230 is an abundant number, since it is smaller than the sum of its proper divisors (40579229994).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28077010230 is a wasteful number, since it uses less digits than its factorization.
28077010230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17658560.
The product of its (nonzero) digits is 4704, while the sum is 30.
The spelling of 28077010230 in words is "twenty-eight billion, seventy-seven million, ten thousand, two hundred thirty".
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