Base | Representation |
---|---|
bin | 100100100000101… |
… | …1110100110000110 |
3 | 10011101021202111111 |
4 | 1021001132212012 |
5 | 10002112433410 |
6 | 321322355234 |
7 | 42234245521 |
oct | 11101364606 |
9 | 3141252444 |
10 | 1225124230 |
11 | 579606a70 |
12 | 2a235bb1a |
13 | 166a800a5 |
14 | b89cdbb8 |
15 | 7284eb8a |
hex | 4905e986 |
1225124230 has 32 divisors (see below), whose sum is σ = 2429077248. Its totient is φ = 441170400.
The previous prime is 1225124207. The next prime is 1225124269. The reversal of 1225124230 is 324215221.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
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, 42736 + ... + 65395.
It is an arithmetic number, because the mean of its divisors is an integer number (75908664).
Almost surely, 21225124230 is an apocalyptic number.
1225124230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1225124230 is a deficient number, since it is larger than the sum of its proper divisors (1203953018).
1225124230 is a wasteful number, since it uses less digits than its factorization.
1225124230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108252.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 1225124230 is about 35001.7746692936. The cubic root of 1225124230 is about 1070.0236492866.
Adding to 1225124230 its reverse (324215221), we get a palindrome (1549339451).
Subtracting from 1225124230 its reverse (324215221), we obtain a palindrome (900909009).
It can be divided in two parts, 12251 and 24230, that added together give a square (36481 = 1912).
The spelling of 1225124230 in words is "one billion, two hundred twenty-five million, one hundred twenty-four thousand, two hundred thirty".
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