Base | Representation |
---|---|
bin | 101011111001… |
… | …0010110110110 |
3 | 1121022011121120 |
4 | 1113302112312 |
5 | 21342402130 |
6 | 2141124410 |
7 | 366414453 |
oct | 127622666 |
9 | 47264546 |
10 | 23012790 |
11 | 11a98939 |
12 | 7859706 |
13 | 49c9848 |
14 | 30b082a |
15 | 2048910 |
hex | 15f25b6 |
23012790 has 16 divisors (see below), whose sum is σ = 55230768. Its totient is φ = 6136736.
The previous prime is 23012761. The next prime is 23012791. The reversal of 23012790 is 9721032.
It is a self number, because there is not a number n which added to its sum of digits gives 23012790.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23012791) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383517 + ... + 383576.
It is an arithmetic number, because the mean of its divisors is an integer number (3451923).
Almost surely, 223012790 is an apocalyptic number.
23012790 is an abundant number, since it is smaller than the sum of its proper divisors (32217978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23012790 is a wasteful number, since it uses less digits than its factorization.
23012790 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 767103.
The product of its (nonzero) digits is 756, while the sum is 24.
The square root of 23012790 is about 4797.1647876636. The cubic root of 23012790 is about 284.4394027947.
The spelling of 23012790 in words is "twenty-three million, twelve thousand, seven hundred ninety".
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