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14136981 = 343109589
BaseRepresentation
bin110101111011…
…011010010101
3222121020021220
4311323122111
512104340411
61223000553
7231106455
oct65733225
928536256
1014136981
117a86361
124899159
132c0c8a1
141c3dd65
151393b06
hexd7b695

14136981 has 8 divisors (see below), whose sum is σ = 19287840. Its totient is φ = 9205392.

The previous prime is 14136953. The next prime is 14137009. The reversal of 14136981 is 18963141.

It is an interprime number because it is at equal distance from previous prime (14136953) and next prime (14137009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14136981 - 219 = 13612693 is a prime.

It is a super-2 number, since 2×141369812 = 399708463588722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14136901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54666 + ... + 54923.

It is an arithmetic number, because the mean of its divisors is an integer number (2410980).

Almost surely, 214136981 is an apocalyptic number.

It is an amenable number.

14136981 is a deficient number, since it is larger than the sum of its proper divisors (5150859).

14136981 is a wasteful number, since it uses less digits than its factorization.

14136981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109635.

The product of its digits is 5184, while the sum is 33.

The square root of 14136981 is about 3759.9176852692. The cubic root of 14136981 is about 241.7977329998.

The spelling of 14136981 in words is "fourteen million, one hundred thirty-six thousand, nine hundred eighty-one".

Divisors: 1 3 43 129 109589 328767 4712327 14136981