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124057 = 131947
BaseRepresentation
bin11110010010011001
320022011201
4132102121
512432212
62354201
71024453
oct362231
9208151
10124057
118522a
125b961
134460b
14332d3
1526b57
hex1e499

124057 has 4 divisors (see below), whose sum is σ = 125136. Its totient is φ = 122980.

The previous prime is 124021. The next prime is 124067. The reversal of 124057 is 750421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343 + ... + 604.

It is an arithmetic number, because the mean of its divisors is an integer number (31284).

2124057 is an apocalyptic number.

It is an amenable number.

124057 is a deficient number, since it is larger than the sum of its proper divisors (1079).

124057 is an equidigital number, since it uses as much as digits as its factorization.

124057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 124057 is about 352.2172624957. The cubic root of 124057 is about 49.8739491574.

Adding to 124057 its reverse (750421), we get a palindrome (874478).

It can be divided in two parts, 12 and 4057, that multiplied together give a palindrome (48684).

The spelling of 124057 in words is "one hundred twenty-four thousand, fifty-seven".

Divisors: 1 131 947 124057