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124124 = 227111331
BaseRepresentation
bin11110010011011100
320022021012
4132103130
512432444
62354352
71024610
oct362334
9208235
10124124
1185290
125b9b8
1344660
1433340
1526b9e
hex1e4dc

124124 has 48 divisors (see below), whose sum is σ = 301056. Its totient is φ = 43200.

The previous prime is 124123. The next prime is 124133. The reversal of 124124 is 421421.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (64) is a multiple of the sum of its prime divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 124099 and 124108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3989 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (6272).

2124124 is an apocalyptic number.

124124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150528).

124124 is an abundant number, since it is smaller than the sum of its proper divisors (176932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124124 is a wasteful number, since it uses less digits than its factorization.

124124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 64 counting only the distinct ones).

The product of its digits is 64, while the sum is 14.

The square root of 124124 is about 352.3123614067. The cubic root of 124124 is about 49.8829260879.

Adding to 124124 its reverse (421421), we get a palindrome (545545).

The spelling of 124124 in words is "one hundred twenty-four thousand, one hundred twenty-four", and thus it is an iban number.

Divisors: 1 2 4 7 11 13 14 22 26 28 31 44 52 62 77 91 124 143 154 182 217 286 308 341 364 403 434 572 682 806 868 1001 1364 1612 2002 2387 2821 4004 4433 4774 5642 8866 9548 11284 17732 31031 62062 124124