Base | Representation |
---|---|
bin | 110011011110… |
… | …0100111001100 |
3 | 1212210002010220 |
4 | 1212330213030 |
5 | 23402040311 |
6 | 2402231340 |
7 | 445246113 |
oct | 146744714 |
9 | 55702126 |
10 | 26986956 |
11 | 14262777 |
12 | 9055550 |
13 | 578b719 |
14 | 3826c7a |
15 | 2581206 |
hex | 19bc9cc |
26986956 has 48 divisors (see below), whose sum is σ = 67060224. Its totient is φ = 8417536.
The previous prime is 26986951. The next prime is 26986961. The reversal of 26986956 is 65968962.
It is an interprime number because it is at equal distance from previous prime (26986951) and next prime (26986961).
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a junction number, because it is equal to n+sod(n) for n = 26986899 and 26986908.
It is not an unprimeable number, because it can be changed into a prime (26986951) 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, 53401 + ... + 53903.
It is an arithmetic number, because the mean of its divisors is an integer number (1397088).
Almost surely, 226986956 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 26986956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33530112).
26986956 is an abundant number, since it is smaller than the sum of its proper divisors (40073268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26986956 is a wasteful number, since it uses less digits than its factorization.
26986956 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 790 (or 788 counting only the distinct ones).
The product of its digits is 1399680, while the sum is 51.
The square root of 26986956 is about 5194.8971115894. The cubic root of 26986956 is about 299.9516811069.
The spelling of 26986956 in words is "twenty-six million, nine hundred eighty-six thousand, nine hundred fifty-six".
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