Base | Representation |
---|---|
bin | 111001100000… |
… | …1000101011000 |
3 | 2002201211101201 |
4 | 1303001011120 |
5 | 30204313000 |
6 | 2554123544 |
7 | 514164535 |
oct | 163010530 |
9 | 62654351 |
10 | 30151000 |
11 | 16023990 |
12 | a1205b4 |
13 | 6328939 |
14 | 400bd8c |
15 | 29a896a |
hex | 1cc1158 |
30151000 has 64 divisors (see below), whose sum is σ = 76995360. Its totient is φ = 10960000.
The previous prime is 30150997. The next prime is 30151007. The reversal of 30151000 is 15103.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30151007) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9630 + ... + 12370.
Almost surely, 230151000 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 30151000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38497680).
30151000 is an abundant number, since it is smaller than the sum of its proper divisors (46844360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30151000 is a wasteful number, since it uses less digits than its factorization.
30151000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2773 (or 2759 counting only the distinct ones).
The product of its (nonzero) digits is 15, while the sum is 10.
The square root of 30151000 is about 5490.9926242893. The cubic root of 30151000 is about 311.2437029312.
Adding to 30151000 its reverse (15103), we get a palindrome (30166103).
The spelling of 30151000 in words is "thirty million, one hundred fifty-one thousand".
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