Base | Representation |
---|---|
bin | 101101001010… |
… | …0111110110101 |
3 | 1122120000100100 |
4 | 1122110332311 |
5 | 22030211101 |
6 | 2203304313 |
7 | 405160461 |
oct | 132247665 |
9 | 48500310 |
10 | 23678901 |
11 | 12403344 |
12 | 7b1b099 |
13 | 4ba0aac |
14 | 32054a1 |
15 | 212ae86 |
hex | 1694fb5 |
23678901 has 6 divisors (see below), whose sum is σ = 34202870. Its totient is φ = 15785928.
The previous prime is 23678899. The next prime is 23678911. The reversal of 23678901 is 10987632.
It can be written as a sum of positive squares in only one way, i.e., 21150801 + 2528100 = 4599^2 + 1590^2 .
It is not a de Polignac number, because 23678901 - 21 = 23678899 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23678911) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1315486 + ... + 1315503.
Almost surely, 223678901 is an apocalyptic number.
It is an amenable number.
23678901 is a deficient number, since it is larger than the sum of its proper divisors (10523969).
23678901 is a wasteful number, since it uses less digits than its factorization.
23678901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2630995 (or 2630992 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 23678901 is about 4866.0971013740. The cubic root of 23678901 is about 287.1577315699.
The spelling of 23678901 in words is "twenty-three million, six hundred seventy-eight thousand, nine hundred one".
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