Search a number
-
+
47953 = 79607
BaseRepresentation
bin1011101101010001
32102210001
423231101
53013303
61010001
7256543
oct135521
972701
1047953
1133034
1223901
1318a99
1413693
15e31d
hexbb51

47953 has 4 divisors (see below), whose sum is σ = 48640. Its totient is φ = 47268.

The previous prime is 47951. The next prime is 47963. The reversal of 47953 is 35974.

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: 35974 = 217987.

It is a cyclic number.

It is not a de Polignac number, because 47953 - 21 = 47951 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (47951) 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, 225 + ... + 382.

It is an arithmetic number, because the mean of its divisors is an integer number (12160).

247953 is an apocalyptic number.

It is an amenable number.

47953 is a deficient number, since it is larger than the sum of its proper divisors (687).

47953 is an equidigital number, since it uses as much as digits as its factorization.

47953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its digits is 3780, while the sum is 28.

The square root of 47953 is about 218.9817343981. The cubic root of 47953 is about 36.3305462236.

It can be divided in two parts, 47 and 953, that added together give a cube (1000 = 103).

The spelling of 47953 in words is "forty-seven thousand, nine hundred fifty-three".

Divisors: 1 79 607 47953