Base | Representation |
---|---|
bin | 101100000100… |
… | …0010111111011 |
3 | 1121110202022121 |
4 | 1120020113323 |
5 | 21403243341 |
6 | 2143102111 |
7 | 400241413 |
oct | 130102773 |
9 | 47422277 |
10 | 23102971 |
11 | 1204a671 |
12 | 78a1937 |
13 | 4a2b8c8 |
14 | 30d5643 |
15 | 20654d1 |
hex | 16085fb |
23102971 has 4 divisors (see below), whose sum is σ = 24107472. Its totient is φ = 22098472.
The previous prime is 23102941. The next prime is 23103019. The reversal of 23102971 is 17920132.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23102971 - 213 = 23094779 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23102921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502216 + ... + 502261.
It is an arithmetic number, because the mean of its divisors is an integer number (6026868).
Almost surely, 223102971 is an apocalyptic number.
23102971 is a deficient number, since it is larger than the sum of its proper divisors (1004501).
23102971 is a wasteful number, since it uses less digits than its factorization.
23102971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1004500.
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 23102971 is about 4806.5550033262. Note that the first 3 decimals coincide. The cubic root of 23102971 is about 284.8104659588.
The spelling of 23102971 in words is "twenty-three million, one hundred two thousand, nine hundred seventy-one".
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