Base | Representation |
---|---|
bin | 1100001011111… |
… | …00110101111111 |
3 | 21010100110220121 |
4 | 12011330311333 |
5 | 202132120411 |
6 | 14050555411 |
7 | 2350611625 |
oct | 605746577 |
9 | 233313817 |
10 | 102223231 |
11 | 5277a910 |
12 | 2a298b67 |
13 | 18241726 |
14 | d80d515 |
15 | 8e93571 |
hex | 617cd7f |
102223231 has 8 divisors (see below), whose sum is σ = 115362000. Its totient is φ = 89725440.
The previous prime is 102223217. The next prime is 102223259. The reversal of 102223231 is 132322201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 102223231 - 211 = 102221183 is a prime.
It is a super-2 number, since 2×1022232312 = 20899177912158722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102223271) 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, 159906 + ... + 160543.
It is an arithmetic number, because the mean of its divisors is an integer number (14420250).
Almost surely, 2102223231 is an apocalyptic number.
102223231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
102223231 is a deficient number, since it is larger than the sum of its proper divisors (13138769).
102223231 is a wasteful number, since it uses less digits than its factorization.
102223231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 320489.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 102223231 is about 10110.5504795733. The cubic root of 102223231 is about 467.5734769694.
Adding to 102223231 its reverse (132322201), we get a palindrome (234545432).
The spelling of 102223231 in words is "one hundred two million, two hundred twenty-three thousand, two hundred thirty-one".
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