Base | Representation |
---|---|
bin | 111001111010… |
… | …0010110011101 |
3 | 2010010111110002 |
4 | 1303310112131 |
5 | 30233022424 |
6 | 3002424045 |
7 | 516031001 |
oct | 163642635 |
9 | 63114402 |
10 | 30360989 |
11 | 1615772a |
12 | a202025 |
13 | 63a03a9 |
14 | 4064701 |
15 | 29eacae |
hex | 1cf459d |
30360989 has 8 divisors (see below), whose sum is σ = 31777920. Its totient is φ = 28952176.
The previous prime is 30360977. The next prime is 30360991. The reversal of 30360989 is 98906303.
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 30360989 - 24 = 30360973 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 (30360959) 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, 6419 + ... + 10095.
It is an arithmetic number, because the mean of its divisors is an integer number (3972240).
Almost surely, 230360989 is an apocalyptic number.
It is an amenable number.
30360989 is a deficient number, since it is larger than the sum of its proper divisors (1416931).
30360989 is a wasteful number, since it uses less digits than its factorization.
30360989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4059.
The product of its (nonzero) digits is 34992, while the sum is 38.
The square root of 30360989 is about 5510.0806709158. The cubic root of 30360989 is about 311.9645923275.
The spelling of 30360989 in words is "thirty million, three hundred sixty thousand, nine hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •