Base | Representation |
---|---|
bin | 101100000001… |
… | …1101011100101 |
3 | 1121102202221200 |
4 | 1120003223211 |
5 | 21402134444 |
6 | 2142433113 |
7 | 400131363 |
oct | 130035345 |
9 | 47382850 |
10 | 23083749 |
11 | 12037187 |
12 | 7892799 |
13 | 4a22c30 |
14 | 30cc633 |
15 | 205e969 |
hex | 1603ae5 |
23083749 has 12 divisors (see below), whose sum is σ = 35908236. Its totient is φ = 14205312.
The previous prime is 23083699. The next prime is 23083757. The reversal of 23083749 is 94738032.
It can be written as a sum of positive squares in 2 ways, for example, as 1988100 + 21095649 = 1410^2 + 4593^2 .
It is a de Polignac number, because none of the positive numbers 2k-23083749 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23083759) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98532 + ... + 98765.
It is an arithmetic number, because the mean of its divisors is an integer number (2992353).
Almost surely, 223083749 is an apocalyptic number.
It is an amenable number.
23083749 is a deficient number, since it is larger than the sum of its proper divisors (12824487).
23083749 is a wasteful number, since it uses less digits than its factorization.
23083749 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 197316 (or 197313 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 23083749 is about 4804.5550262225. Note that the first 3 decimals coincide. The cubic root of 23083749 is about 284.7314552578.
It can be divided in two parts, 23083 and 749, that added together give a palindrome (23832).
The spelling of 23083749 in words is "twenty-three million, eighty-three thousand, seven hundred forty-nine".
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