Base | Representation |
---|---|
bin | 11011111110110101… |
… | …011101011000110100 |
3 | 2212112220101212011011 |
4 | 123332311131120310 |
5 | 443013034340034 |
6 | 21445205322004 |
7 | 2112356150422 |
oct | 337665353064 |
9 | 85486355134 |
10 | 30045230644 |
11 | 11818827530 |
12 | 59a6106304 |
13 | 2aaa8706b0 |
14 | 1650460112 |
15 | bacab0864 |
hex | 6fed5d634 |
30045230644 has 96 divisors (see below), whose sum is σ = 63996791040. Its totient is φ = 12153523200.
The previous prime is 30045230641. The next prime is 30045230647. The reversal of 30045230644 is 44603254003.
It is an interprime number because it is at equal distance from previous prime (30045230641) and next prime (30045230647).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30045230641) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20286384 + ... + 20287864.
It is an arithmetic number, because the mean of its divisors is an integer number (666633240).
Almost surely, 230045230644 is an apocalyptic number.
It is an amenable number.
30045230644 is an abundant number, since it is smaller than the sum of its proper divisors (33951560396).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30045230644 is a wasteful number, since it uses less digits than its factorization.
30045230644 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2761 (or 2759 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 31.
Adding to 30045230644 its reverse (44603254003), we get a palindrome (74648484647).
The spelling of 30045230644 in words is "thirty billion, forty-five million, two hundred thirty thousand, six hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •