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49745 = 59949
BaseRepresentation
bin1100001001010001
32112020102
430021101
53042440
61022145
7265013
oct141121
975212
1049745
1134413
1224955
1319847
14141b3
15eb15
hexc251

49745 has 4 divisors (see below), whose sum is σ = 59700. Its totient is φ = 39792.

The previous prime is 49741. The next prime is 49747. The reversal of 49745 is 54794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54794 = 227397.

It can be written as a sum of positive squares in 2 ways, for example, as 18769 + 30976 = 137^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 49745 - 22 = 49741 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 49745.

It is not an unprimeable number, because it can be changed into a prime (49741) 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, 4970 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (14925).

249745 is an apocalyptic number.

It is an amenable number.

49745 is a deficient number, since it is larger than the sum of its proper divisors (9955).

49745 is an equidigital number, since it uses as much as digits as its factorization.

49745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954.

The product of its digits is 5040, while the sum is 29.

The square root of 49745 is about 223.0358715543. The cubic root of 49745 is about 36.7775796797. Note that the first 3 decimals are identical.

The spelling of 49745 in words is "forty-nine thousand, seven hundred forty-five".

Divisors: 1 5 9949 49745