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14542147 = 37393031
BaseRepresentation
bin110111011110…
…010101000011
31000100211002001
4313132111003
512210322042
61235404431
7234414634
oct67362503
930324061
1014542147
118232804
124a53717
133022129
141d0788b
151423bb7
hexdde543

14542147 has 4 divisors (see below), whose sum is σ = 14935216. Its totient is φ = 14149080.

The previous prime is 14542133. The next prime is 14542159. The reversal of 14542147 is 74124541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74124541 = 151490891.

It is a cyclic number.

It is not a de Polignac number, because 14542147 - 27 = 14542019 is a prime.

It is a super-2 number, since 2×145421472 = 422948078739218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14542247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196479 + ... + 196552.

It is an arithmetic number, because the mean of its divisors is an integer number (3733804).

Almost surely, 214542147 is an apocalyptic number.

14542147 is a deficient number, since it is larger than the sum of its proper divisors (393069).

14542147 is an equidigital number, since it uses as much as digits as its factorization.

14542147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393068.

The product of its digits is 4480, while the sum is 28.

The square root of 14542147 is about 3813.4167094615. The cubic root of 14542147 is about 244.0859848797.

Adding to 14542147 its reverse (74124541), we get a palindrome (88666688).

The spelling of 14542147 in words is "fourteen million, five hundred forty-two thousand, one hundred forty-seven".

Divisors: 1 37 393031 14542147