Search a number
-
+
14855947 = 19974653
BaseRepresentation
bin111000101010…
…111100001011
31000221202112021
4320222330023
512300342242
61250225311
7240162541
oct70527413
930852467
1014855947
118427547
124b85237
133101c02
141d89d91
151486b67
hexe2af0b

14855947 has 4 divisors (see below), whose sum is σ = 14930800. Its totient is φ = 14781096.

The previous prime is 14855927. The next prime is 14855959. The reversal of 14855947 is 74955841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74955841 = 81919151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14855947 is a prime.

It is a super-2 number, since 2×148559472 = 441398322533618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14855927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37128 + ... + 37525.

It is an arithmetic number, because the mean of its divisors is an integer number (3732700).

Almost surely, 214855947 is an apocalyptic number.

14855947 is a deficient number, since it is larger than the sum of its proper divisors (74853).

14855947 is an equidigital number, since it uses as much as digits as its factorization.

14855947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74852.

The product of its digits is 201600, while the sum is 43.

The square root of 14855947 is about 3854.3413185653. The cubic root of 14855947 is about 245.8291882732.

The spelling of 14855947 in words is "fourteen million, eight hundred fifty-five thousand, nine hundred forty-seven".

Divisors: 1 199 74653 14855947