Search a number
-
+
129848 = 2316231
BaseRepresentation
bin11111101100111000
320121010012
4133230320
513123343
62441052
71050365
oct375470
9217105
10129848
1189614
1263188
1347144
143546c
1528718
hex1fb38

129848 has 8 divisors (see below), whose sum is σ = 243480. Its totient is φ = 64920.

The previous prime is 129841. The next prime is 129853. The reversal of 129848 is 848921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108 + ... + 8123.

It is an arithmetic number, because the mean of its divisors is an integer number (30435).

2129848 is an apocalyptic number.

It is an amenable number.

129848 is a deficient number, since it is larger than the sum of its proper divisors (113632).

129848 is a wasteful number, since it uses less digits than its factorization.

129848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16237 (or 16233 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 129848 is about 360.3442798214. The cubic root of 129848 is about 50.6382188719.

The spelling of 129848 in words is "one hundred twenty-nine thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16231 32462 64924 129848