Base | Representation |
---|---|
bin | 100101000000100… |
… | …1101001001111101 |
3 | 10012112201111112012 |
4 | 1022001031021331 |
5 | 10020402030023 |
6 | 323120421005 |
7 | 42526244444 |
oct | 11201151175 |
9 | 3175644465 |
10 | 1241830013 |
11 | 587a872a6 |
12 | 2a7a77765 |
13 | 16a37bc78 |
14 | bacdbd5b |
15 | 7404e978 |
hex | 4a04d27d |
1241830013 has 4 divisors (see below), whose sum is σ = 1244423040. Its totient is φ = 1239236988.
The previous prime is 1241829997. The next prime is 1241830021. The reversal of 1241830013 is 3100381421.
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: 3100381421 = 149 ⋅20807929.
It is a cyclic number.
It is not a de Polignac number, because 1241830013 - 24 = 1241829997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1241800013) 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, 1295795 + ... + 1296752.
It is an arithmetic number, because the mean of its divisors is an integer number (311105760).
Almost surely, 21241830013 is an apocalyptic number.
It is an amenable number.
1241830013 is a deficient number, since it is larger than the sum of its proper divisors (2593027).
1241830013 is an equidigital number, since it uses as much as digits as its factorization.
1241830013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2593026.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 1241830013 is about 35239.6085818217. The cubic root of 1241830013 is about 1074.8653194894.
The spelling of 1241830013 in words is "one billion, two hundred forty-one million, eight hundred thirty thousand, thirteen".
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