Base | Representation |
---|---|
bin | 1110100011100… |
… | …10010110111111 |
3 | 22111202111010220 |
4 | 13101302112333 |
5 | 222224300411 |
6 | 20041032423 |
7 | 3011601045 |
oct | 721622677 |
9 | 274674126 |
10 | 122103231 |
11 | 62a18a68 |
12 | 34a85713 |
13 | 1c3b2343 |
14 | 12306395 |
15 | aabdb06 |
hex | 74725bf |
122103231 has 16 divisors (see below), whose sum is σ = 174747744. Its totient is φ = 75561984.
The previous prime is 122103199. The next prime is 122103257. The reversal of 122103231 is 132301221.
It is not a de Polignac number, because 122103231 - 25 = 122103199 is a prime.
It is a super-2 number, since 2×1221032312 = 29818398041278722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 122103231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122103431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12676 + ... + 20121.
It is an arithmetic number, because the mean of its divisors is an integer number (10921734).
Almost surely, 2122103231 is an apocalyptic number.
122103231 is a deficient number, since it is larger than the sum of its proper divisors (52644513).
122103231 is a wasteful number, since it uses less digits than its factorization.
122103231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32890.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 122103231 is about 11050.0330768736. The cubic root of 122103231 is about 496.1074155476.
Adding to 122103231 its reverse (132301221), we get a palindrome (254404452).
The spelling of 122103231 in words is "one hundred twenty-two million, one hundred three thousand, two hundred thirty-one".
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