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47056 = 2417173
BaseRepresentation
bin1011011111010000
32101112211
423133100
53001211
61001504
7254122
oct133720
971484
1047056
1132399
1223294
1318559
1413212
15de21
hexb7d0

47056 has 20 divisors (see below), whose sum is σ = 97092. Its totient is φ = 22016.

The previous prime is 47051. The next prime is 47057. The reversal of 47056 is 65074.

It can be written as a sum of positive squares in 2 ways, for example, as 40000 + 7056 = 200^2 + 84^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47051) 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, 186 + ... + 358.

247056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48546).

47056 is an abundant number, since it is smaller than the sum of its proper divisors (50036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47056 is a wasteful number, since it uses less digits than its factorization.

47056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 47056 is about 216.9239498073. The cubic root of 47056 is about 36.1025880389.

It can be divided in two parts, 4 and 7056, that multiplied together give a square (28224 = 1682).

The spelling of 47056 in words is "forty-seven thousand, fifty-six".

Divisors: 1 2 4 8 16 17 34 68 136 173 272 346 692 1384 2768 2941 5882 11764 23528 47056