Base | Representation |
---|---|
bin | 11100001110101000… |
… | …010111100010000000 |
3 | 2220020101001102202011 |
4 | 130032220113202000 |
5 | 444033404443430 |
6 | 21531353302304 |
7 | 2122054511566 |
oct | 341650274200 |
9 | 86211042664 |
10 | 30310234240 |
11 | 11944378670 |
12 | 5a5aa04994 |
13 | 2b20737260 |
14 | 1677723a36 |
15 | bc5eaa22a |
hex | 70ea17880 |
30310234240 has 256 divisors, whose sum is σ = 87438839040. Its totient is φ = 9897984000.
The previous prime is 30310234231. The next prime is 30310234249. The reversal of 30310234240 is 4243201303.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30310234231) and next prime (30310234249).
It is a Harshad number since it is a multiple of its sum of digits (22).
It is not an unprimeable number, because it can be changed into a prime (30310234249) 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, 3381765 + ... + 3390715.
It is an arithmetic number, because the mean of its divisors is an integer number (341557965).
Almost surely, 230310234240 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30310234240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43719419520).
30310234240 is an abundant number, since it is smaller than the sum of its proper divisors (57128604800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30310234240 is a wasteful number, since it uses less digits than its factorization.
30310234240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9031 (or 9019 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 22.
Adding to 30310234240 its reverse (4243201303), we get a palindrome (34553435543).
The spelling of 30310234240 in words is "thirty billion, three hundred ten million, two hundred thirty-four thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •