Search a number
-
+
124908125 = 54199853
BaseRepresentation
bin1110111000111…
…11001001011101
322201000222201212
413130133021131
5223434030000
620221114205
73044462426
oct734371135
9281028655
10124908125
1164564361
12359b8965
131cb54c44
141283664d
15ae74c35
hex771f25d

124908125 has 10 divisors (see below), whose sum is σ = 156085974. Its totient is φ = 99926000.

The previous prime is 124908103. The next prime is 124908149. The reversal of 124908125 is 521809421.

It can be written as a sum of positive squares in 5 ways, for example, as 22108804 + 102799321 = 4702^2 + 10139^2 .

It is not a de Polignac number, because 124908125 - 28 = 124907869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124908091 and 124908100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99302 + ... + 100551.

Almost surely, 2124908125 is an apocalyptic number.

It is an amenable number.

124908125 is a deficient number, since it is larger than the sum of its proper divisors (31177849).

124908125 is an frugal number, since it uses more digits than its factorization.

124908125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199873 (or 199858 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 124908125 is about 11176.2303573253. The cubic root of 124908125 is about 499.8774699752.

The spelling of 124908125 in words is "one hundred twenty-four million, nine hundred eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 199853 999265 4996325 24981625 124908125