Search a number
-
+
14780054 = 27390027
BaseRepresentation
bin111000011000…
…011010010110
31000210220102102
4320120122112
512240430204
61244442102
7236425352
oct70303226
930726372
1014780054
118385523
124b49332
1330a64c3
141d6a462
15146e41e
hexe18696

14780054 has 4 divisors (see below), whose sum is σ = 22170084. Its totient is φ = 7390026.

The previous prime is 14780041. The next prime is 14780063. The reversal of 14780054 is 45008741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45008741 = 172647573.

It is a junction number, because it is equal to n+sod(n) for n = 14779999 and 14780026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3695012 + ... + 3695015.

It is an arithmetic number, because the mean of its divisors is an integer number (5542521).

Almost surely, 214780054 is an apocalyptic number.

14780054 is a deficient number, since it is larger than the sum of its proper divisors (7390030).

14780054 is an equidigital number, since it uses as much as digits as its factorization.

14780054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390029.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 14780054 is about 3844.4835804045. The cubic root of 14780054 is about 245.4098595711.

Adding to 14780054 its reverse (45008741), we get a palindrome (59788795).

The spelling of 14780054 in words is "fourteen million, seven hundred eighty thousand, fifty-four".

Divisors: 1 2 7390027 14780054