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14073987 = 34691329
BaseRepresentation
bin110101101100…
…000010000011
3222111000212210
4311230002003
512100331422
61221353203
7230425014
oct65540203
928430783
1014073987
117a42aa4
124868803
132bba005
141c2500b
15138010c
hexd6c083

14073987 has 4 divisors (see below), whose sum is σ = 18765320. Its totient is φ = 9382656.

The previous prime is 14073959. The next prime is 14073989. The reversal of 14073987 is 78937041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78937041 = 326312347.

It is not a de Polignac number, because 14073987 - 215 = 14041219 is a prime.

It is a super-2 number, since 2×140739872 = 396154220152338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14073989) 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, 2345662 + ... + 2345667.

It is an arithmetic number, because the mean of its divisors is an integer number (4691330).

Almost surely, 214073987 is an apocalyptic number.

14073987 is a deficient number, since it is larger than the sum of its proper divisors (4691333).

14073987 is an equidigital number, since it uses as much as digits as its factorization.

14073987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691332.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 14073987 is about 3751.5312873545. The cubic root of 14073987 is about 241.4380501996.

The spelling of 14073987 in words is "fourteen million, seventy-three thousand, nine hundred eighty-seven".

Divisors: 1 3 4691329 14073987