Base | Representation |
---|---|
bin | 1010001010100111… |
… | …0111110101101000 |
3 | 21001011212202022100 |
4 | 2202221313311220 |
5 | 21042043314413 |
6 | 1130441253400 |
7 | 124424100501 |
oct | 24251676550 |
9 | 7034782270 |
10 | 2728885608 |
11 | 1180426169 |
12 | 641a94260 |
13 | 34648b417 |
14 | 1bc5d1ba8 |
15 | 10e88da73 |
hex | a2a77d68 |
2728885608 has 96 divisors (see below), whose sum is σ = 7806839040. Its totient is φ = 859783680.
The previous prime is 2728885603. The next prime is 2728885613. The reversal of 2728885608 is 8065888272.
2728885608 is a `hidden beast` number, since 2 + 7 + 28 + 8 + 8 + 5 + 608 = 666.
It is an interprime number because it is at equal distance from previous prime (2728885603) and next prime (2728885613).
It is not an unprimeable number, because it can be changed into a prime (2728885603) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81760 + ... + 110192.
It is an arithmetic number, because the mean of its divisors is an integer number (81321240).
Almost surely, 22728885608 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 2728885608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3903419520).
2728885608 is an abundant number, since it is smaller than the sum of its proper divisors (5077953432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2728885608 is a wasteful number, since it uses less digits than its factorization.
2728885608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28519 (or 28512 counting only the distinct ones).
The product of its (nonzero) digits is 3440640, while the sum is 54.
The square root of 2728885608 is about 52238.7366616001. The cubic root of 2728885608 is about 1397.4247911455.
It can be divided in two parts, 27288 and 85608, that added together give a square (112896 = 3362).
The spelling of 2728885608 in words is "two billion, seven hundred twenty-eight million, eight hundred eighty-five thousand, six hundred eight".
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