Base | Representation |
---|---|
bin | 11110010010110… |
… | …10010110110010 |
3 | 122201011220122012 |
4 | 33021122112302 |
5 | 1010024003430 |
6 | 41114442522 |
7 | 6204013433 |
oct | 1711322662 |
9 | 581156565 |
10 | 254125490 |
11 | 1204a1273 |
12 | 71133442 |
13 | 40858418 |
14 | 25a7148a |
15 | 1749b695 |
hex | f25a5b2 |
254125490 has 16 divisors (see below), whose sum is σ = 458113752. Its totient is φ = 101497344.
The previous prime is 254125489. The next prime is 254125493. The reversal of 254125490 is 94521452.
It can be written as a sum of positive squares in 4 ways, for example, as 248598289 + 5527201 = 15767^2 + 2351^2 .
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (254125493) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11999 + ... + 25538.
Almost surely, 2254125490 is an apocalyptic number.
254125490 is a deficient number, since it is larger than the sum of its proper divisors (203988262).
254125490 is a wasteful number, since it uses less digits than its factorization.
254125490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38221.
The product of its (nonzero) digits is 14400, while the sum is 32.
The square root of 254125490 is about 15941.3139358084. The cubic root of 254125490 is about 633.4068314210.
The spelling of 254125490 in words is "two hundred fifty-four million, one hundred twenty-five thousand, four hundred ninety".
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