Base | Representation |
---|---|
bin | 101100000011… |
… | …1110010010000 |
3 | 1121110122000022 |
4 | 1120013302100 |
5 | 21403204220 |
6 | 2143043012 |
7 | 400231400 |
oct | 130076220 |
9 | 47418008 |
10 | 23100560 |
11 | 1204887a |
12 | 78a0468 |
13 | 4a2a792 |
14 | 30d4800 |
15 | 2064925 |
hex | 1607c90 |
23100560 has 120 divisors (see below), whose sum is σ = 64120896. Its totient is φ = 7714560.
The previous prime is 23100557. The next prime is 23100563. The reversal of 23100560 is 6500132.
It is an interprime number because it is at equal distance from previous prime (23100557) and next prime (23100563).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23100563) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278279 + ... + 278361.
Almost surely, 223100560 is an apocalyptic number.
23100560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23100560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32060448).
23100560 is an abundant number, since it is smaller than the sum of its proper divisors (41020336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23100560 is a wasteful number, since it uses less digits than its factorization.
23100560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181 (or 168 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 23100560 is about 4806.3041934526. The cubic root of 23100560 is about 284.8005581145.
Adding to 23100560 its reverse (6500132), we get a palindrome (29600692).
The spelling of 23100560 in words is "twenty-three million, one hundred thousand, five hundred sixty".
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