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47236 = 2272241
BaseRepresentation
bin1011100010000100
32101210111
423202010
53002421
61002404
7254500
oct134204
971714
1047236
1132542
1223404
1318667
1413300
15dee1
hexb884

47236 has 18 divisors (see below), whose sum is σ = 96558. Its totient is φ = 20160.

The previous prime is 47221. The next prime is 47237. The reversal of 47236 is 63274.

It can be written as a sum of positive squares in only one way, i.e., 44100 + 3136 = 210^2 + 56^2 .

It is a d-powerful number, because it can be written as 42 + 72 + 29 + 3 + 66 .

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (47237) by changing a digit.

47236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76 + ... + 316.

247236 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 47236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48279).

47236 is an abundant number, since it is smaller than the sum of its proper divisors (49322).

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

47236 is a wasteful number, since it uses less digits than its factorization.

47236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 250 counting only the distinct ones).

The product of its digits is 1008, while the sum is 22.

The square root of 47236 is about 217.3384457476. The cubic root of 47236 is about 36.1485630288.

The spelling of 47236 in words is "forty-seven thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 98 196 241 482 964 1687 3374 6748 11809 23618 47236