Base | Representation |
---|---|
bin | 110011010110… |
… | …1001010100000 |
3 | 1212122212100100 |
4 | 1212231022200 |
5 | 23343024210 |
6 | 2401022400 |
7 | 444563460 |
oct | 146551240 |
9 | 55585310 |
10 | 26923680 |
11 | 1421a183 |
12 | 9024a00 |
13 | 5768994 |
14 | 380bba0 |
15 | 256c5c0 |
hex | 19ad2a0 |
26923680 has 144 divisors (see below), whose sum is σ = 105041664. Its totient is φ = 6151680.
The previous prime is 26923669. The next prime is 26923681. The reversal of 26923680 is 8632962.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (26923681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8745 + ... + 11415.
It is an arithmetic number, because the mean of its divisors is an integer number (729456).
Almost surely, 226923680 is an apocalyptic number.
26923680 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 26923680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52520832).
26923680 is an abundant number, since it is smaller than the sum of its proper divisors (78117984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26923680 is a wasteful number, since it uses less digits than its factorization.
26923680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2699 (or 2688 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The square root of 26923680 is about 5188.8033302487. The cubic root of 26923680 is about 299.7170665795.
The spelling of 26923680 in words is "twenty-six million, nine hundred twenty-three thousand, six hundred eighty".
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