Base | Representation |
---|---|
bin | 100011110011001… |
… | …0101000100111101 |
3 | 10002201022210222020 |
4 | 1013212111010331 |
5 | 4430003331031 |
6 | 315110310353 |
7 | 41524200456 |
oct | 10746250475 |
9 | 3081283866 |
10 | 1201230141 |
11 | 567076a91 |
12 | 2963583b9 |
13 | 161b35387 |
14 | b577012d |
15 | 706d0096 |
hex | 4799513d |
1201230141 has 16 divisors (see below), whose sum is σ = 1744075200. Its totient is φ = 732509568.
The previous prime is 1201230139. The next prime is 1201230169. The reversal of 1201230141 is 1410321021.
It is not a de Polignac number, because 1201230141 - 21 = 1201230139 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1201230141.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1201230101) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361696 + ... + 365001.
It is an arithmetic number, because the mean of its divisors is an integer number (109004700).
Almost surely, 21201230141 is an apocalyptic number.
It is an amenable number.
1201230141 is a deficient number, since it is larger than the sum of its proper divisors (542845059).
1201230141 is a wasteful number, since it uses less digits than its factorization.
1201230141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 726748.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 1201230141 is about 34658.7671592629. The cubic root of 1201230141 is about 1063.0215618061.
Adding to 1201230141 its reverse (1410321021), we get a palindrome (2611551162).
The spelling of 1201230141 in words is "one billion, two hundred one million, two hundred thirty thousand, one hundred forty-one".
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