Base | Representation |
---|---|
bin | 101110001111… |
… | …100100111110 |
3 | 211210212211220 |
4 | 232033210332 |
5 | 11100404210 |
6 | 1111454210 |
7 | 205016235 |
oct | 56174476 |
9 | 24725756 |
10 | 12122430 |
11 | 692a841 |
12 | 4087366 |
13 | 2685948 |
14 | 1877b1c |
15 | 10e6c70 |
hex | b8f93e |
12122430 has 16 divisors (see below), whose sum is σ = 29093904. Its totient is φ = 3232640.
The previous prime is 12122419. The next prime is 12122443. The reversal of 12122430 is 3422121.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202011 + ... + 202070.
It is an arithmetic number, because the mean of its divisors is an integer number (1818369).
Almost surely, 212122430 is an apocalyptic number.
12122430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12122430 is an abundant number, since it is smaller than the sum of its proper divisors (16971474).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12122430 is a wasteful number, since it uses less digits than its factorization.
12122430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 404091.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 12122430 is about 3481.7280192456. The cubic root of 12122430 is about 229.7188120115.
Adding to 12122430 its reverse (3422121), we get a palindrome (15544551).
The spelling of 12122430 in words is "twelve million, one hundred twenty-two thousand, four hundred thirty".
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