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13894843 = 74318701
BaseRepresentation
bin110101000000…
…010010111011
3222010221010211
4311000102323
512024113333
61213451551
7226050514
oct65002273
928127124
1013894843
117930446
1247a0bb7
132b56601
141bb9a0b
151346ecd
hexd404bb

13894843 has 4 divisors (see below), whose sum is σ = 13914288. Its totient is φ = 13875400.

The previous prime is 13894817. The next prime is 13894861. The reversal of 13894843 is 34849831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13894843 - 221 = 11797691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13894796 and 13894805.

It is not an unprimeable number, because it can be changed into a prime (13894813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8608 + ... + 10093.

It is an arithmetic number, because the mean of its divisors is an integer number (3478572).

Almost surely, 213894843 is an apocalyptic number.

13894843 is a deficient number, since it is larger than the sum of its proper divisors (19445).

13894843 is an equidigital number, since it uses as much as digits as its factorization.

13894843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444.

The product of its digits is 82944, while the sum is 40.

The square root of 13894843 is about 3727.5787047358. The cubic root of 13894843 is about 240.4092727340.

The spelling of 13894843 in words is "thirteen million, eight hundred ninety-four thousand, eight hundred forty-three".

Divisors: 1 743 18701 13894843