Base | Representation |
---|---|
bin | 100100011100111… |
… | …1010011101111010 |
3 | 10011020120000100111 |
4 | 1020321322131322 |
5 | 10001111004432 |
6 | 321212054534 |
7 | 42211346311 |
oct | 11071723572 |
9 | 3136500314 |
10 | 1223141242 |
11 | 578482134 |
12 | 2a176444a |
13 | 16653761b |
14 | b8635278 |
15 | 725ac347 |
hex | 48e7a77a |
1223141242 has 16 divisors (see below), whose sum is σ = 1926239040. Its totient is φ = 581388192.
The previous prime is 1223141237. The next prime is 1223141243. The reversal of 1223141242 is 2421413221.
It is not an unprimeable number, because it can be changed into a prime (1223141243) 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, 74067 + ... + 89062.
It is an arithmetic number, because the mean of its divisors is an integer number (120389940).
Almost surely, 21223141242 is an apocalyptic number.
1223141242 is a deficient number, since it is larger than the sum of its proper divisors (703097798).
1223141242 is a wasteful number, since it uses less digits than its factorization.
1223141242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163317.
The product of its digits is 768, while the sum is 22.
The square root of 1223141242 is about 34973.4362338047. The cubic root of 1223141242 is about 1069.4460235402.
Adding to 1223141242 its reverse (2421413221), we get a palindrome (3644554463).
The spelling of 1223141242 in words is "one billion, two hundred twenty-three million, one hundred forty-one thousand, two hundred forty-two".
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