Base | Representation |
---|---|
bin | 111010010111… |
… | …1011101010011 |
3 | 2010120210112211 |
4 | 1310233131103 |
5 | 30313244331 |
6 | 3011532551 |
7 | 521056561 |
oct | 164573523 |
9 | 63523484 |
10 | 30603091 |
11 | 16302612 |
12 | a2ba157 |
13 | 645664c |
14 | 40c8a31 |
15 | 2a478b1 |
hex | 1d2f753 |
30603091 has 8 divisors (see below), whose sum is σ = 33325200. Its totient is φ = 27992160.
The previous prime is 30603073. The next prime is 30603103. The reversal of 30603091 is 19030603.
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 30603091 - 219 = 30078803 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30603011) 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, 27220 + ... + 28321.
It is an arithmetic number, because the mean of its divisors is an integer number (4165650).
Almost surely, 230603091 is an apocalyptic number.
30603091 is a deficient number, since it is larger than the sum of its proper divisors (2722109).
30603091 is a wasteful number, since it uses less digits than its factorization.
30603091 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55589.
The product of its (nonzero) digits is 486, while the sum is 22.
The square root of 30603091 is about 5532.0060556728. The cubic root of 30603091 is about 312.7916117423.
Adding to 30603091 its reverse (19030603), we get a palindrome (49633694).
The spelling of 30603091 in words is "thirty million, six hundred three thousand, ninety-one".
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