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13994467 = 22516217
BaseRepresentation
bin110101011000…
…100111100011
3222022222210121
4311120213203
512040310332
61215541111
7226644124
oct65304743
928288717
1013994467
117999283
12482a797
132b8ca66
141c0404b
151366797
hexd589e3

13994467 has 4 divisors (see below), whose sum is σ = 14002936. Its totient is φ = 13986000.

The previous prime is 13994447. The next prime is 13994483. The reversal of 13994467 is 76449931.

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: 76449931 = 659116009.

It is a cyclic number.

It is not a de Polignac number, because 13994467 - 27 = 13994339 is a prime.

It is a super-2 number, since 2×139944672 = 391690213228178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13994447) 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, 858 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (3500734).

Almost surely, 213994467 is an apocalyptic number.

13994467 is a deficient number, since it is larger than the sum of its proper divisors (8469).

13994467 is an equidigital number, since it uses as much as digits as its factorization.

13994467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468.

The product of its digits is 163296, while the sum is 43.

The square root of 13994467 is about 3740.9179354805. The cubic root of 13994467 is about 240.9824714787.

The spelling of 13994467 in words is "thirteen million, nine hundred ninety-four thousand, four hundred sixty-seven".

Divisors: 1 2251 6217 13994467