Base | Representation |
---|---|
bin | 100100010111110… |
… | …0011000111001101 |
3 | 10011001102222012010 |
4 | 1020233203013031 |
5 | 4444412033031 |
6 | 321033531433 |
7 | 42146301606 |
oct | 11057430715 |
9 | 3131388163 |
10 | 1220424141 |
11 | 5769967a2 |
12 | 2a0873b79 |
13 | 165ac5981 |
14 | b8128dad |
15 | 72222246 |
hex | 48be31cd |
1220424141 has 8 divisors (see below), whose sum is σ = 1627615584. Its totient is φ = 813424400.
The previous prime is 1220424119. The next prime is 1220424157. The reversal of 1220424141 is 1414240221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1220424141 - 25 = 1220424109 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220424181) 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, 32346 + ... + 59051.
It is an arithmetic number, because the mean of its divisors is an integer number (203451948).
Almost surely, 21220424141 is an apocalyptic number.
It is an amenable number.
1220424141 is a deficient number, since it is larger than the sum of its proper divisors (407191443).
1220424141 is an equidigital number, since it uses as much as digits as its factorization.
1220424141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95851.
The product of its (nonzero) digits is 512, while the sum is 21.
The square root of 1220424141 is about 34934.5694262860. The cubic root of 1220424141 is about 1068.6535429244.
Adding to 1220424141 its reverse (1414240221), we get a palindrome (2634664362).
The spelling of 1220424141 in words is "one billion, two hundred twenty million, four hundred twenty-four thousand, one hundred forty-one".
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