Base | Representation |
---|---|
bin | 11110010010101… |
… | …10101011010101 |
3 | 122201011010222002 |
4 | 33021112223111 |
5 | 1010023013141 |
6 | 41114245045 |
7 | 6203621465 |
oct | 1711265325 |
9 | 581133862 |
10 | 254110421 |
11 | 120490a14 |
12 | 71126785 |
13 | 408515c6 |
14 | 25a69ba5 |
15 | 17496e9b |
hex | f256ad5 |
254110421 has 4 divisors (see below), whose sum is σ = 254397792. Its totient is φ = 253823052.
The previous prime is 254110399. The next prime is 254110453. The reversal of 254110421 is 124011452.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-254110421 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 254110393 and 254110402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (254110471) 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, 142355 + ... + 144128.
It is an arithmetic number, because the mean of its divisors is an integer number (63599448).
Almost surely, 2254110421 is an apocalyptic number.
It is an amenable number.
254110421 is a deficient number, since it is larger than the sum of its proper divisors (287371).
254110421 is an equidigital number, since it uses as much as digits as its factorization.
254110421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 287370.
The product of its (nonzero) digits is 320, while the sum is 20.
The square root of 254110421 is about 15940.8412889659. The cubic root of 254110421 is about 633.3943113649.
Adding to 254110421 its reverse (124011452), we get a palindrome (378121873).
The spelling of 254110421 in words is "two hundred fifty-four million, one hundred ten thousand, four hundred twenty-one".
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