Base | Representation |
---|---|
bin | 1110100100011… |
… | …00111100100010 |
3 | 22111222000112012 |
4 | 13102030330202 |
5 | 222241242010 |
6 | 20043232522 |
7 | 3012533405 |
oct | 722147442 |
9 | 274860465 |
10 | 122212130 |
11 | 62a92867 |
12 | 34b18742 |
13 | 1c41ca91 |
14 | 12333d3c |
15 | aae1005 |
hex | 748cf22 |
122212130 has 32 divisors (see below), whose sum is σ = 223657200. Its totient is φ = 48074752.
The previous prime is 122212093. The next prime is 122212141. The reversal of 122212130 is 31212221.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 15358561 + 106853569 = 3919^2 + 10337^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313976 + ... + 314364.
Almost surely, 2122212130 is an apocalyptic number.
122212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
122212130 is a deficient number, since it is larger than the sum of its proper divisors (101445070).
122212130 is a wasteful number, since it uses less digits than its factorization.
122212130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 838.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 122212130 is about 11054.9595205048. The cubic root of 122212130 is about 496.2548578603.
Adding to 122212130 its reverse (31212221), we get a palindrome (153424351).
Subtracting from 122212130 its reverse (31212221), we obtain a palindrome (90999909).
The spelling of 122212130 in words is "one hundred twenty-two million, two hundred twelve thousand, one hundred thirty".
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