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124025 = 5211241
BaseRepresentation
bin11110010001111001
320022010112
4132101321
512432100
62354105
71024406
oct362171
9208115
10124025
1185200
125b935
13445b5
14332ad
1526b35
hex1e479

124025 has 18 divisors (see below), whose sum is σ = 173166. Its totient is φ = 88000.

The previous prime is 124021. The next prime is 124067. The reversal of 124025 is 520421.

Adding to 124025 its reverse (520421), we get a palindrome (644446).

It can be written as a sum of positive squares in 3 ways, for example, as 121 + 123904 = 11^2 + 352^2 .

It is not a de Polignac number, because 124025 - 22 = 124021 is a prime.

It is a super-3 number, since 3×1240253 = 5723332297546875, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3005 + ... + 3045.

2124025 is an apocalyptic number.

It is an amenable number.

124025 is a deficient number, since it is larger than the sum of its proper divisors (49141).

124025 is a wasteful number, since it uses less digits than its factorization.

124025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 124025 is about 352.1718330588. The cubic root of 124025 is about 49.8696605277.

The spelling of 124025 in words is "one hundred twenty-four thousand, twenty-five".

Divisors: 1 5 11 25 41 55 121 205 275 451 605 1025 2255 3025 4961 11275 24805 124025