Base | Representation |
---|---|
bin | 100110100100… |
… | …1010010000001 |
3 | 1102001102212220 |
4 | 1031021102001 |
5 | 20134114410 |
6 | 2001241253 |
7 | 333615330 |
oct | 115112201 |
9 | 42042786 |
10 | 20223105 |
11 | 10462a11 |
12 | 6933229 |
13 | 4260b46 |
14 | 2985d17 |
15 | 1b97070 |
hex | 1349481 |
20223105 has 16 divisors (see below), whose sum is σ = 36979584. Its totient is φ = 9244800.
The previous prime is 20223103. The next prime is 20223109. The reversal of 20223105 is 50132202.
It is not a de Polignac number, because 20223105 - 21 = 20223103 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (20223101) 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, 96196 + ... + 96405.
It is an arithmetic number, because the mean of its divisors is an integer number (2311224).
Almost surely, 220223105 is an apocalyptic number.
It is an amenable number.
20223105 is a deficient number, since it is larger than the sum of its proper divisors (16756479).
20223105 is a wasteful number, since it uses less digits than its factorization.
20223105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192616.
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 20223105 is about 4497.0106737699. The cubic root of 20223105 is about 272.4473651952.
Adding to 20223105 its reverse (50132202), we get a palindrome (70355307).
The spelling of 20223105 in words is "twenty million, two hundred twenty-three thousand, one hundred five".
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