Base | Representation |
---|---|
bin | 111011000001… |
… | …0000000000111 |
3 | 2011012222100001 |
4 | 1312002000013 |
5 | 30410104231 |
6 | 3023102131 |
7 | 523665361 |
oct | 166020007 |
9 | 64188301 |
10 | 30941191 |
11 | 16513636 |
12 | a441947 |
13 | 65444c8 |
14 | 4175d31 |
15 | 2ab2b61 |
hex | 1d82007 |
30941191 has 8 divisors (see below), whose sum is σ = 31302000. Its totient is φ = 30582720.
The previous prime is 30941189. The next prime is 30941237. The reversal of 30941191 is 19114903.
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 30941191 - 21 = 30941189 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30941111) 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, 41500 + ... + 42238.
It is an arithmetic number, because the mean of its divisors is an integer number (3912750).
Almost surely, 230941191 is an apocalyptic number.
30941191 is a deficient number, since it is larger than the sum of its proper divisors (360809).
30941191 is a wasteful number, since it uses less digits than its factorization.
30941191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1169.
The product of its (nonzero) digits is 972, while the sum is 28.
The square root of 30941191 is about 5562.4806516517. The cubic root of 30941191 is about 313.9392927658.
The spelling of 30941191 in words is "thirty million, nine hundred forty-one thousand, one hundred ninety-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •