Base | Representation |
---|---|
bin | 111001011111… |
… | …1001000011011 |
3 | 2002201102102112 |
4 | 1302333020123 |
5 | 30204034003 |
6 | 2554022535 |
7 | 514132322 |
oct | 162771033 |
9 | 62642375 |
10 | 30143003 |
11 | 16018980 |
12 | a117a4b |
13 | 63250c7 |
14 | 40090b9 |
15 | 29a63d8 |
hex | 1cbf21b |
30143003 has 8 divisors (see below), whose sum is σ = 33300480. Its totient is φ = 27055080.
The previous prime is 30142993. The next prime is 30143011. The reversal of 30143003 is 30034103.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30143003 - 28 = 30142747 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30143303) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16475 + ... + 18212.
It is an arithmetic number, because the mean of its divisors is an integer number (4162560).
Almost surely, 230143003 is an apocalyptic number.
30143003 is a deficient number, since it is larger than the sum of its proper divisors (3157477).
30143003 is a wasteful number, since it uses less digits than its factorization.
30143003 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34777.
The product of its (nonzero) digits is 108, while the sum is 14.
The square root of 30143003 is about 5490.2643834336. The cubic root of 30143003 is about 311.2161832692.
Adding to 30143003 its reverse (30034103), we get a palindrome (60177106).
Subtracting from 30143003 its reverse (30034103), we obtain a square (108900 = 3302).
The spelling of 30143003 in words is "thirty million, one hundred forty-three thousand, three".
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