Base | Representation |
---|---|
bin | 11110010010000… |
… | …01001000000000 |
3 | 122200222122212120 |
4 | 33021001020000 |
5 | 1010012202034 |
6 | 41112324240 |
7 | 6203103225 |
oct | 1711011000 |
9 | 580878776 |
10 | 254022144 |
11 | 120430662 |
12 | 710a3680 |
13 | 4082037c |
14 | 25a4594c |
15 | 1747ac49 |
hex | f241200 |
254022144 has 40 divisors (see below), whose sum is σ = 676734960. Its totient is φ = 84673536.
The previous prime is 254022127. The next prime is 254022149. The reversal of 254022144 is 441220452.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (254022149) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81154 + ... + 84225.
It is an arithmetic number, because the mean of its divisors is an integer number (16918374).
Almost surely, 2254022144 is an apocalyptic number.
254022144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
254022144 is an abundant number, since it is smaller than the sum of its proper divisors (422712816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
254022144 is an equidigital number, since it uses as much as digits as its factorization.
254022144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165400 (or 165384 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 24.
The square root of 254022144 is about 15938.0721544357. The cubic root of 254022144 is about 633.3209566064.
Adding to 254022144 its reverse (441220452), we get a palindrome (695242596).
The spelling of 254022144 in words is "two hundred fifty-four million, twenty-two thousand, one hundred forty-four".
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