Base | Representation |
---|---|
bin | 11011111100010100… |
… | …101111100110000000 |
3 | 2212102222010101211010 |
4 | 123330110233212000 |
5 | 442421243200112 |
6 | 21441102320520 |
7 | 2111335066563 |
oct | 337424574600 |
9 | 85388111733 |
10 | 30003100032 |
11 | 117a6a71144 |
12 | 5993b89140 |
13 | 2aa1c0c139 |
14 | 1648a144da |
15 | ba903c63c |
hex | 6fc52f980 |
30003100032 has 128 divisors (see below), whose sum is σ = 84137760000. Its totient is φ = 9446713344.
The previous prime is 30003100027. The next prime is 30003100073. The reversal of 30003100032 is 23000130003.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 30003099990 and 30003100017.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2540413 + ... + 2552195.
It is an arithmetic number, because the mean of its divisors is an integer number (657326250).
Almost surely, 230003100032 is an apocalyptic number.
30003100032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30003100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42068880000).
30003100032 is an abundant number, since it is smaller than the sum of its proper divisors (54134659968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30003100032 is a wasteful number, since it uses less digits than its factorization.
30003100032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12168 (or 12156 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 12.
Adding to 30003100032 its reverse (23000130003), we get a palindrome (53003230035).
The spelling of 30003100032 in words is "thirty billion, three million, one hundred thousand, thirty-two".
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