Base | Representation |
---|---|
bin | 110111001110… |
… | …0011000110000 |
3 | 2000110220211110 |
4 | 1232130120300 |
5 | 24402431422 |
6 | 2512313320 |
7 | 501042330 |
oct | 156343060 |
9 | 60426743 |
10 | 28952112 |
11 | 15385172 |
12 | 9842840 |
13 | 5cc9037 |
14 | 3bb90c0 |
15 | 281d60c |
hex | 1b9c630 |
28952112 has 80 divisors (see below), whose sum is σ = 86105600. Its totient is φ = 8211456.
The previous prime is 28952111. The next prime is 28952113. The reversal of 28952112 is 21125982.
It is an interprime number because it is at equal distance from previous prime (28952111) and next prime (28952113).
It is a self number, because there is not a number n which added to its sum of digits gives 28952112.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28952111) 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, 66648 + ... + 67080.
It is an arithmetic number, because the mean of its divisors is an integer number (1076320).
Almost surely, 228952112 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28952112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43052800).
28952112 is an abundant number, since it is smaller than the sum of its proper divisors (57153488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28952112 is a wasteful number, since it uses less digits than its factorization.
28952112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 650 (or 644 counting only the distinct ones).
The product of its digits is 2880, while the sum is 30.
The square root of 28952112 is about 5380.7166808893. The cubic root of 28952112 is about 307.0624777793.
The spelling of 28952112 in words is "twenty-eight million, nine hundred fifty-two thousand, one hundred twelve".
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