Base | Representation |
---|---|
bin | 10101101010000011… |
… | …111011011110011100 |
3 | 2020000121222100222010 |
4 | 111222003323132130 |
5 | 340111042021140 |
6 | 14403255151220 |
7 | 1452155606241 |
oct | 255203733634 |
9 | 66017870863 |
10 | 23254251420 |
11 | 9953467304 |
12 | 460b975510 |
13 | 226795c9aa |
14 | 11a85935c8 |
15 | 9117d3880 |
hex | 56a0fb79c |
23254251420 has 96 divisors (see below), whose sum is σ = 65590995456. Its totient is φ = 6155680000.
The previous prime is 23254251341. The next prime is 23254251421. The reversal of 23254251420 is 2415245232.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23254251421) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4771585 + ... + 4776455.
It is an arithmetic number, because the mean of its divisors is an integer number (683239536).
Almost surely, 223254251420 is an apocalyptic number.
23254251420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23254251420 is an abundant number, since it is smaller than the sum of its proper divisors (42336744036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23254251420 is a wasteful number, since it uses less digits than its factorization.
23254251420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5451 (or 5449 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 30.
Adding to 23254251420 its reverse (2415245232), we get a palindrome (25669496652).
The spelling of 23254251420 in words is "twenty-three billion, two hundred fifty-four million, two hundred fifty-one thousand, four hundred twenty".
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