Search a number
-
+
254540323 = 1447175909
BaseRepresentation
bin11110010101111…
…11101000100011
3122201221222200101
433022333220203
51010130242243
641131403231
76210362032
oct1712775043
9581858611
10254540323
11120754a04
12712b3517
134097219b
1425b3c719
151752e54d
hexf2bfa23

254540323 has 4 divisors (see below), whose sum is σ = 254717680. Its totient is φ = 254362968.

The previous prime is 254540261. The next prime is 254540329. The reversal of 254540323 is 323045452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-254540323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254540291 and 254540300.

It is not an unprimeable number, because it can be changed into a prime (254540329) 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 3 ways as a sum of consecutive naturals, for example, 86508 + ... + 89401.

It is an arithmetic number, because the mean of its divisors is an integer number (63679420).

Almost surely, 2254540323 is an apocalyptic number.

254540323 is a deficient number, since it is larger than the sum of its proper divisors (177357).

254540323 is a wasteful number, since it uses less digits than its factorization.

254540323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177356.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 254540323 is about 15954.3198852223. The cubic root of 254540323 is about 633.7513006184.

Adding to 254540323 its reverse (323045452), we get a palindrome (577585775).

The spelling of 254540323 in words is "two hundred fifty-four million, five hundred forty thousand, three hundred twenty-three".

Divisors: 1 1447 175909 254540323