Search a number
-
+
14807138 = 27403569
BaseRepresentation
bin111000011111…
…000001100010
31000212021120112
4320133001202
512242312023
61245211322
7236600333
oct70370142
930767515
1014807138
1183a3905
124b60b42
1330b5928
141d7628a
151477478
hexe1f062

14807138 has 4 divisors (see below), whose sum is σ = 22210710. Its totient is φ = 7403568.

The previous prime is 14807131. The next prime is 14807159. The reversal of 14807138 is 83170841.

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

It can be written as a sum of positive squares in only one way, i.e., 9223369 + 5583769 = 3037^2 + 2363^2 .

It is not an unprimeable number, because it can be changed into a prime (14807131) by changing a digit.

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, 3701783 + ... + 3701786.

Almost surely, 214807138 is an apocalyptic number.

14807138 is a deficient number, since it is larger than the sum of its proper divisors (7403572).

14807138 is an equidigital number, since it uses as much as digits as its factorization.

14807138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403571.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 14807138 is about 3848.0044178769. The cubic root of 14807138 is about 245.5596701383.

Adding to 14807138 its reverse (83170841), we get a palindrome (97977979).

The spelling of 14807138 in words is "fourteen million, eight hundred seven thousand, one hundred thirty-eight".

Divisors: 1 2 7403569 14807138