Base | Representation |
---|---|
bin | 100101000010111… |
… | …0100100101111110 |
3 | 10012121222222111012 |
4 | 1022011310211332 |
5 | 10021204241001 |
6 | 323202355222 |
7 | 42542444456 |
oct | 11205644576 |
9 | 3177888435 |
10 | 1243040126 |
11 | 588733499 |
12 | 2a835bb12 |
13 | 16a6b3a03 |
14 | bb134d66 |
15 | 741dd2bb |
hex | 4a17497e |
1243040126 has 4 divisors (see below), whose sum is σ = 1864560192. Its totient is φ = 621520062.
The previous prime is 1243040081. The next prime is 1243040147. The reversal of 1243040126 is 6210403421.
It is a semiprime because it is the product of two primes.
It is a super-3 number, since 3×12430401263 (a number of 28 digits) contains 333 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310760030 + ... + 310760033.
It is an arithmetic number, because the mean of its divisors is an integer number (466140048).
Almost surely, 21243040126 is an apocalyptic number.
1243040126 is a deficient number, since it is larger than the sum of its proper divisors (621520066).
1243040126 is an equidigital number, since it uses as much as digits as its factorization.
1243040126 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 621520065.
The product of its (nonzero) digits is 1152, while the sum is 23.
The square root of 1243040126 is about 35256.7741859632. The cubic root of 1243040126 is about 1075.2143437024.
Adding to 1243040126 its reverse (6210403421), we get a palindrome (7453443547).
The spelling of 1243040126 in words is "one billion, two hundred forty-three million, forty thousand, one hundred twenty-six".
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