Base | Representation |
---|---|
bin | 100011001101… |
… | …101010000101 |
3 | 122100222112012 |
4 | 203031222011 |
5 | 4330342411 |
6 | 525504005 |
7 | 141314324 |
oct | 43155205 |
9 | 18328465 |
10 | 9230981 |
11 | 5235411 |
12 | 3112005 |
13 | 1bb2826 |
14 | 13240bb |
15 | c2518b |
hex | 8cda85 |
9230981 has 4 divisors (see below), whose sum is σ = 9632352. Its totient is φ = 8829612.
The previous prime is 9230971. The next prime is 9230987. The reversal of 9230981 is 1890329.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 9230981 - 26 = 9230917 is a prime.
It is a super-2 number, since 2×92309812 = 170422020444722, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9230987) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200651 + ... + 200696.
It is an arithmetic number, because the mean of its divisors is an integer number (2408088).
Almost surely, 29230981 is an apocalyptic number.
It is an amenable number.
9230981 is a deficient number, since it is larger than the sum of its proper divisors (401371).
9230981 is a wasteful number, since it uses less digits than its factorization.
9230981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 401370.
The product of its (nonzero) digits is 3888, while the sum is 32.
The square root of 9230981 is about 3038.2529519446. The cubic root of 9230981 is about 209.7728534128.
The spelling of 9230981 in words is "nine million, two hundred thirty thousand, nine hundred eighty-one".
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