Search a number
-
+
29945 = 553113
BaseRepresentation
bin111010011111001
31112002002
413103321
51424240
6350345
7153206
oct72371
945062
1029945
1120553
12153b5
1310826
14acad
158d15
hex74f9

29945 has 8 divisors (see below), whose sum is σ = 36936. Its totient is φ = 23296.

The previous prime is 29927. The next prime is 29947. The reversal of 29945 is 54992.

It can be written as a sum of positive squares in 4 ways, for example, as 361 + 29584 = 19^2 + 172^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29945 - 26 = 29881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 321.

It is an arithmetic number, because the mean of its divisors is an integer number (4617).

229945 is an apocalyptic number.

It is an amenable number.

29945 is a deficient number, since it is larger than the sum of its proper divisors (6991).

29945 is a wasteful number, since it uses less digits than its factorization.

29945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171.

The product of its digits is 3240, while the sum is 29.

The square root of 29945 is about 173.0462365959. The cubic root of 29945 is about 31.0533248004.

The spelling of 29945 in words is "twenty-nine thousand, nine hundred forty-five".

Divisors: 1 5 53 113 265 565 5989 29945