Base | Representation |
---|---|
bin | 11110010010111… |
… | …10011110110001 |
3 | 122201012202210221 |
4 | 33021132132301 |
5 | 1010030024020 |
6 | 41115053041 |
7 | 6204113620 |
oct | 1711363661 |
9 | 581182727 |
10 | 254142385 |
11 | 120502a32 |
12 | 71141181 |
13 | 40863013 |
14 | 25a776b7 |
15 | 174a16aa |
hex | f25e7b1 |
254142385 has 32 divisors (see below), whose sum is σ = 368121600. Its totient is φ = 164540160.
The previous prime is 254142373. The next prime is 254142389. The reversal of 254142385 is 583241452.
It is not a de Polignac number, because 254142385 - 27 = 254142257 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 254142385.
It is not an unprimeable number, because it can be changed into a prime (254142389) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306151 + ... + 306979.
It is an arithmetic number, because the mean of its divisors is an integer number (11503800).
Almost surely, 2254142385 is an apocalyptic number.
It is an amenable number.
254142385 is a deficient number, since it is larger than the sum of its proper divisors (113979215).
254142385 is a wasteful number, since it uses less digits than its factorization.
254142385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1321.
The product of its digits is 38400, while the sum is 34.
The square root of 254142385 is about 15941.8438394058. The cubic root of 254142385 is about 633.4208680180.
The spelling of 254142385 in words is "two hundred fifty-four million, one hundred forty-two thousand, three hundred eighty-five".
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