Base | Representation |
---|---|
bin | 100100101010010… |
… | …1000001000110101 |
3 | 10011201201210101212 |
4 | 1021110220020311 |
5 | 10004404102203 |
6 | 322022131205 |
7 | 42325023545 |
oct | 11124501065 |
9 | 3151653355 |
10 | 1230144053 |
11 | 581425486 |
12 | 2a3b80b05 |
13 | 167b19bb8 |
14 | b9539325 |
15 | 72ee21d8 |
hex | 49528235 |
1230144053 has 4 divisors (see below), whose sum is σ = 1248504480. Its totient is φ = 1211783628.
The previous prime is 1230143989. The next prime is 1230144059. The reversal of 1230144053 is 3504410321.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3504410321 = 2131 ⋅1644491.
It is a cyclic number.
It is not a de Polignac number, because 1230144053 - 26 = 1230143989 is a prime.
It is a super-2 number, since 2×12301440532 = 3026508782262533618, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230144059) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180113 + ... + 9180246.
It is an arithmetic number, because the mean of its divisors is an integer number (312126120).
Almost surely, 21230144053 is an apocalyptic number.
It is an amenable number.
1230144053 is a deficient number, since it is larger than the sum of its proper divisors (18360427).
1230144053 is an equidigital number, since it uses as much as digits as its factorization.
1230144053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18360426.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 1230144053 is about 35073.4094863901. The cubic root of 1230144053 is about 1071.4830957895.
Adding to 1230144053 its reverse (3504410321), we get a palindrome (4734554374).
The spelling of 1230144053 in words is "one billion, two hundred thirty million, one hundred forty-four thousand, fifty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.110 sec. • engine limits •