Base | Representation |
---|---|
bin | 11100001001111010… |
… | …001010111001011101 |
3 | 2220000211222200101102 |
4 | 130021322022321131 |
5 | 443403114440010 |
6 | 21515443322445 |
7 | 2120103246662 |
oct | 341172127135 |
9 | 86024880342 |
10 | 30231015005 |
11 | 11903690024 |
12 | 5a38380425 |
13 | 2b0a1bb379 |
14 | 166adc1a69 |
15 | bbe05cba5 |
hex | 709e8ae5d |
30231015005 has 4 divisors (see below), whose sum is σ = 36277218012. Its totient is φ = 24184812000.
The previous prime is 30231014971. The next prime is 30231015043. The reversal of 30231015005 is 50051013203.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 9698704324 + 20532310681 = 98482^2 + 143291^2 .
It is not a de Polignac number, because 30231015005 - 218 = 30230752861 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3023101496 + ... + 3023101505.
It is an arithmetic number, because the mean of its divisors is an integer number (9069304503).
Almost surely, 230231015005 is an apocalyptic number.
It is an amenable number.
30231015005 is a deficient number, since it is larger than the sum of its proper divisors (6046203007).
30231015005 is an equidigital number, since it uses as much as digits as its factorization.
30231015005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6046203006.
The product of its (nonzero) digits is 450, while the sum is 20.
Adding to 30231015005 its reverse (50051013203), we get a palindrome (80282028208).
The spelling of 30231015005 in words is "thirty billion, two hundred thirty-one million, fifteen thousand, five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •