Base | Representation |
---|---|
bin | 111010111001… |
… | …1110101111101 |
3 | 2011010000210010 |
4 | 1311303311331 |
5 | 30401230242 |
6 | 3021533433 |
7 | 523334322 |
oct | 165636575 |
9 | 64100703 |
10 | 30883197 |
11 | 16484004 |
12 | a414279 |
13 | 6523ca7 |
14 | 415cb49 |
15 | 2aa089c |
hex | 1d73d7d |
30883197 has 8 divisors (see below), whose sum is σ = 42290656. Its totient is φ = 20032272.
The previous prime is 30883187. The next prime is 30883199. The reversal of 30883197 is 79138803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30883197 - 214 = 30866813 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 (30883199) 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, 139003 + ... + 139224.
It is an arithmetic number, because the mean of its divisors is an integer number (5286332).
Almost surely, 230883197 is an apocalyptic number.
30883197 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
It is an amenable number.
30883197 is a deficient number, since it is larger than the sum of its proper divisors (11407459).
30883197 is a wasteful number, since it uses less digits than its factorization.
30883197 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 278267.
The product of its (nonzero) digits is 36288, while the sum is 39.
The square root of 30883197 is about 5557.2652447044. The cubic root of 30883197 is about 313.7430281568.
The spelling of 30883197 in words is "thirty million, eight hundred eighty-three thousand, one hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •