Base | Representation |
---|---|
bin | 110001111111… |
… | …0101011001100 |
3 | 1211022112221200 |
4 | 1203332223030 |
5 | 23202141342 |
6 | 2333425500 |
7 | 435525666 |
oct | 143765314 |
9 | 54275850 |
10 | 26208972 |
11 | 13881209 |
12 | 893b290 |
13 | 557858a |
14 | 36a3536 |
15 | 247a94c |
hex | 18feacc |
26208972 has 18 divisors (see below), whose sum is σ = 66250548. Its totient is φ = 8736312.
The previous prime is 26208947. The next prime is 26208989. The reversal of 26208972 is 27980262.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 728027 = 26208972 / (2 + 6 + 2 + 0 + 8 + 9 + 7 + 2).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363978 + ... + 364049.
It is an arithmetic number, because the mean of its divisors is an integer number (3680586).
Almost surely, 226208972 is an apocalyptic number.
It is an amenable number.
26208972 is an abundant number, since it is smaller than the sum of its proper divisors (40041576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26208972 is a wasteful number, since it uses less digits than its factorization.
26208972 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 728037 (or 728032 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The square root of 26208972 is about 5119.4698944324. The cubic root of 26208972 is about 297.0411805634.
The spelling of 26208972 in words is "twenty-six million, two hundred eight thousand, nine hundred seventy-two".
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