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14440807 = 14719817
BaseRepresentation
bin110111000101…
…100101100111
31000011200001201
4313011211213
512144101212
61233303331
7233513323
oct67054547
930150051
1014440807
118173657
124a04b47
132cb7c74
141cbc983
151403b57
hexdc5967

14440807 has 4 divisors (see below), whose sum is σ = 14452096. Its totient is φ = 14429520.

The previous prime is 14440793. The next prime is 14440813. The reversal of 14440807 is 70804441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70804441 = 271261271.

It is a cyclic number.

It is not a de Polignac number, because 14440807 - 219 = 13916519 is a prime.

It is a super-2 number, since 2×144408072 = 417073813622498, 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 (14440607) 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, 3438 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (3613024).

Almost surely, 214440807 is an apocalyptic number.

14440807 is a deficient number, since it is larger than the sum of its proper divisors (11289).

14440807 is an equidigital number, since it uses as much as digits as its factorization.

14440807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11288.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 14440807 is about 3800.1061827270. The cubic root of 14440807 is about 243.5176745797.

The spelling of 14440807 in words is "fourteen million, four hundred forty thousand, eight hundred seven".

Divisors: 1 1471 9817 14440807