Base | Representation |
---|---|
bin | 110011011100… |
… | …0001110010100 |
3 | 1212202011111010 |
4 | 1212320032110 |
5 | 23401001410 |
6 | 2402012220 |
7 | 445142523 |
oct | 146701624 |
9 | 55664433 |
10 | 26968980 |
11 | 14250215 |
12 | 9047070 |
13 | 578349c |
14 | 38204ba |
15 | 257ac20 |
hex | 19b8394 |
26968980 has 96 divisors (see below), whose sum is σ = 81567360. Its totient is φ = 6635520.
The previous prime is 26968979. The next prime is 26968993. The reversal of 26968980 is 8986962.
It is a zygodrome in base 9.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46452 + ... + 47028.
It is an arithmetic number, because the mean of its divisors is an integer number (849660).
Almost surely, 226968980 is an apocalyptic number.
26968980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 26968980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40783680).
26968980 is an abundant number, since it is smaller than the sum of its proper divisors (54598380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26968980 is a wasteful number, since it uses less digits than its factorization.
26968980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 649 (or 647 counting only the distinct ones).
The product of its (nonzero) digits is 373248, while the sum is 48.
The square root of 26968980 is about 5193.1666639922. The cubic root of 26968980 is about 299.8850670848.
The spelling of 26968980 in words is "twenty-six million, nine hundred sixty-eight thousand, nine hundred eighty".
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