Base | Representation |
---|---|
bin | 101101101111… |
… | …0110010011000 |
3 | 1200010101000220 |
4 | 1123132302120 |
5 | 22114344313 |
6 | 2214000040 |
7 | 410560026 |
oct | 133366230 |
9 | 50111026 |
10 | 23981208 |
11 | 1259a489 |
12 | 8046020 |
13 | 4c78584 |
14 | 3283716 |
15 | 218a823 |
hex | 16dec98 |
23981208 has 16 divisors (see below), whose sum is σ = 59953080. Its totient is φ = 7993728.
The previous prime is 23981207. The next prime is 23981219. The reversal of 23981208 is 80218932.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23981201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499585 + ... + 499632.
Almost surely, 223981208 is an apocalyptic number.
It is an amenable number.
23981208 is an abundant number, since it is smaller than the sum of its proper divisors (35971872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23981208 is a wasteful number, since it uses less digits than its factorization.
23981208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 999226 (or 999222 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 23981208 is about 4897.0611595119. The cubic root of 23981208 is about 288.3746089759.
The spelling of 23981208 in words is "twenty-three million, nine hundred eighty-one thousand, two hundred eight".
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