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47146 = 2112143
BaseRepresentation
bin1011100000101010
32101200011
423200222
53002041
61002134
7254311
oct134052
971604
1047146
1132470
122334a
13185c8
1413278
15de81
hexb82a

47146 has 8 divisors (see below), whose sum is σ = 77184. Its totient is φ = 21420.

The previous prime is 47143. The next prime is 47147. The reversal of 47146 is 64174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 2143 = 47146 / (4 + 7 + 1 + 4 + 6).

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (47143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050 + ... + 1093.

It is an arithmetic number, because the mean of its divisors is an integer number (9648).

247146 is an apocalyptic number.

47146 is a deficient number, since it is larger than the sum of its proper divisors (30038).

47146 is a wasteful number, since it uses less digits than its factorization.

47146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156.

The product of its digits is 672, while the sum is 22.

The square root of 47146 is about 217.1312966847. The cubic root of 47146 is about 36.1255901613.

The spelling of 47146 in words is "forty-seven thousand, one hundred forty-six".

Divisors: 1 2 11 22 2143 4286 23573 47146