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14130381 = 34710127
BaseRepresentation
bin110101111001…
…110011001101
3222120220020110
4311321303031
512104133011
61222510233
7231051306
oct65716315
928526213
1014130381
117a81401
124895379
132c09895
141c3b7ad
151391ba6
hexd79ccd

14130381 has 4 divisors (see below), whose sum is σ = 18840512. Its totient is φ = 9420252.

The previous prime is 14130377. The next prime is 14130427. The reversal of 14130381 is 18303141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18303141 = 36101047.

It is not a de Polignac number, because 14130381 - 22 = 14130377 is a prime.

It is a super-2 number, since 2×141303812 = 399335334410322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14130331) 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, 2355061 + ... + 2355066.

It is an arithmetic number, because the mean of its divisors is an integer number (4710128).

Almost surely, 214130381 is an apocalyptic number.

It is an amenable number.

14130381 is a deficient number, since it is larger than the sum of its proper divisors (4710131).

14130381 is an equidigital number, since it uses as much as digits as its factorization.

14130381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710130.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 14130381 is about 3759.0399040180. The cubic root of 14130381 is about 241.7600985277.

The spelling of 14130381 in words is "fourteen million, one hundred thirty thousand, three hundred eighty-one".

Divisors: 1 3 4710127 14130381