[go: up one dir, main page]

Search a number
-
+
47208 = 2337281
BaseRepresentation
bin1011100001101000
32101202110
423201220
53002313
61002320
7254430
oct134150
971673
1047208
1132517
12233a0
1318645
14132c0
15dec3
hexb868

47208 has 32 divisors (see below), whose sum is σ = 135360. Its totient is φ = 13440.

The previous prime is 47207. The next prime is 47221. The reversal of 47208 is 80274.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (47207) 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 7 ways as a sum of consecutive naturals, for example, 28 + ... + 308.

It is an arithmetic number, because the mean of its divisors is an integer number (4230).

247208 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 47208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67680).

47208 is an abundant number, since it is smaller than the sum of its proper divisors (88152).

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

47208 is a wasteful number, since it uses less digits than its factorization.

47208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 47208 is about 217.2740205363. The cubic root of 47208 is about 36.1414190438.

The spelling of 47208 in words is "forty-seven thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 281 562 843 1124 1686 1967 2248 3372 3934 5901 6744 7868 11802 15736 23604 47208