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47893 = 471019
BaseRepresentation
bin1011101100010101
32102200211
423230111
53013033
61005421
7256426
oct135425
972624
1047893
1132a8a
1223871
1318a51
141364d
15e2cd
hexbb15

47893 has 4 divisors (see below), whose sum is σ = 48960. Its totient is φ = 46828.

The previous prime is 47881. The next prime is 47903. The reversal of 47893 is 39874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39874 = 219937.

It is a cyclic number.

It is not a de Polignac number, because 47893 - 29 = 47381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47843) 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, 463 + ... + 556.

It is an arithmetic number, because the mean of its divisors is an integer number (12240).

247893 is an apocalyptic number.

It is an amenable number.

47893 is a deficient number, since it is larger than the sum of its proper divisors (1067).

47893 is a wasteful number, since it uses less digits than its factorization.

47893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its digits is 6048, while the sum is 31.

The square root of 47893 is about 218.8446937899. The cubic root of 47893 is about 36.3153873349.

The spelling of 47893 in words is "forty-seven thousand, eight hundred ninety-three".

Divisors: 1 47 1019 47893