Base | Representation |
---|---|
bin | 11011111110100101… |
… | …101101000101100000 |
3 | 2212112121122000212001 |
4 | 123332211231011200 |
5 | 443011010210030 |
6 | 21444541013344 |
7 | 2112306066535 |
oct | 337645550540 |
9 | 85477560761 |
10 | 30041100640 |
11 | 11816466601 |
12 | 59a4854254 |
13 | 2aa9a558c5 |
14 | 164daa6d8c |
15 | bac546cca |
hex | 6fe96d160 |
30041100640 has 96 divisors (see below), whose sum is σ = 75447923040. Its totient is φ = 11271168000.
The previous prime is 30041100637. The next prime is 30041100689. The reversal of 30041100640 is 4600114003.
It is a happy number.
It is a super-3 number, since 3×300411006403 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
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 15 ways as a sum of consecutive naturals, for example, 258120 + ... + 355960.
It is an arithmetic number, because the mean of its divisors is an integer number (785915865).
Almost surely, 230041100640 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 30041100640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37723961520).
30041100640 is an abundant number, since it is smaller than the sum of its proper divisors (45406822400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30041100640 is a wasteful number, since it uses less digits than its factorization.
30041100640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97976 (or 97968 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 30041100640 its reverse (4600114003), we get a palindrome (34641214643).
The spelling of 30041100640 in words is "thirty billion, forty-one million, one hundred thousand, six hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •