Base | Representation |
---|---|
bin | 11110010010110… |
… | …01110110011100 |
3 | 122201011210210112 |
4 | 33021121312130 |
5 | 1010023422140 |
6 | 41114425152 |
7 | 6204004415 |
oct | 1711316634 |
9 | 581153715 |
10 | 254123420 |
11 | 12049a761 |
12 | 711321b8 |
13 | 408574b5 |
14 | 25a7080c |
15 | 1749ac65 |
hex | f259d9c |
254123420 has 12 divisors (see below), whose sum is σ = 533659224. Its totient is φ = 101649360.
The previous prime is 254123417. The next prime is 254123431. The reversal of 254123420 is 24321452.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6353066 + ... + 6353105.
It is an arithmetic number, because the mean of its divisors is an integer number (44471602).
Almost surely, 2254123420 is an apocalyptic number.
254123420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
254123420 is an abundant number, since it is smaller than the sum of its proper divisors (279535804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
254123420 is a wasteful number, since it uses less digits than its factorization.
254123420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12706180 (or 12706178 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 23.
The square root of 254123420 is about 15941.2490100368. The cubic root of 254123420 is about 633.4051115939.
Adding to 254123420 its reverse (24321452), we get a palindrome (278444872).
The spelling of 254123420 in words is "two hundred fifty-four million, one hundred twenty-three thousand, four hundred twenty".
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