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14021131 = 17381047
BaseRepresentation
bin110101011111…
…001000001011
3222101100101011
4311133020023
512042134011
61220304351
7230114635
oct65371013
928340334
1014021131
117a07313
1248420b7
132b9bc37
141c0da55
15136e621
hexd5f20b

14021131 has 4 divisors (see below), whose sum is σ = 14102352. Its totient is φ = 13939912.

The previous prime is 14021129. The next prime is 14021143. The reversal of 14021131 is 13112041.

14021131 = T313 + T314 + ... + T485.

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

It is a cyclic number.

It is not a de Polignac number, because 14021131 - 21 = 14021129 is a prime.

It is a super-2 number, since 2×140211312 = 393184229038322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14021101) 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, 40351 + ... + 40696.

It is an arithmetic number, because the mean of its divisors is an integer number (3525588).

Almost surely, 214021131 is an apocalyptic number.

14021131 is a deficient number, since it is larger than the sum of its proper divisors (81221).

14021131 is an equidigital number, since it uses as much as digits as its factorization.

14021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81220.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 14021131 is about 3744.4800707174. The cubic root of 14021131 is about 241.1354243091.

Adding to 14021131 its reverse (13112041), we get a palindrome (27133172).

The spelling of 14021131 in words is "fourteen million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 173 81047 14021131