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14198971 = 89159539
BaseRepresentation
bin110110001010…
…100010111011
3222201101022211
4312022202323
512113331341
61224155551
7231455263
oct66124273
928641284
1014198971
118018996
124908bb7
132c31b77
141c587a3
1513a7181
hexd8a8bb

14198971 has 4 divisors (see below), whose sum is σ = 14358600. Its totient is φ = 14039344.

The previous prime is 14198969. The next prime is 14199001. The reversal of 14198971 is 17989141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17989141 = 37486193.

It is a cyclic number.

It is not a de Polignac number, because 14198971 - 21 = 14198969 is a prime.

It is a super-2 number, since 2×141989712 = 403221554917682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14198911) 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, 79681 + ... + 79858.

It is an arithmetic number, because the mean of its divisors is an integer number (3589650).

Almost surely, 214198971 is an apocalyptic number.

14198971 is a deficient number, since it is larger than the sum of its proper divisors (159629).

14198971 is an equidigital number, since it uses as much as digits as its factorization.

14198971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159628.

The product of its digits is 18144, while the sum is 40.

The square root of 14198971 is about 3768.1521996862. The cubic root of 14198971 is about 242.1506415861.

The spelling of 14198971 in words is "fourteen million, one hundred ninety-eight thousand, nine hundred seventy-one".

Divisors: 1 89 159539 14198971