Base | Representation |
---|---|
bin | 101100000100… |
… | …0011111000111 |
3 | 1121110202221122 |
4 | 1120020133013 |
5 | 21403302211 |
6 | 2143104155 |
7 | 400242641 |
oct | 130103707 |
9 | 47422848 |
10 | 23103431 |
11 | 1204aa4a |
12 | 78a205b |
13 | 4a2bb90 |
14 | 30d5891 |
15 | 20656db |
hex | 16087c7 |
23103431 has 8 divisors (see below), whose sum is σ = 25962720. Its totient is φ = 20398752.
The previous prime is 23103419. The next prime is 23103433. The reversal of 23103431 is 13430132.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23103431 - 210 = 23102407 is a prime.
It is a super-2 number, since 2×231034312 = 1067537047943522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23103433) 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, 38336 + ... + 38933.
It is an arithmetic number, because the mean of its divisors is an integer number (3245340).
Almost surely, 223103431 is an apocalyptic number.
23103431 is a deficient number, since it is larger than the sum of its proper divisors (2859289).
23103431 is a wasteful number, since it uses less digits than its factorization.
23103431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77305.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 23103431 is about 4806.6028544077. The cubic root of 23103431 is about 284.8123562199.
Adding to 23103431 its reverse (13430132), we get a palindrome (36533563).
The spelling of 23103431 in words is "twenty-three million, one hundred three thousand, four hundred thirty-one".
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