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124002 = 232832
BaseRepresentation
bin11110010001100010
320022002200
4132101202
512432002
62354030
71024344
oct362142
9208080
10124002
118518a
125b916
1344598
1433294
1526b1c
hex1e462

124002 has 18 divisors (see below), whose sum is σ = 271947. Its totient is φ = 40836.

The previous prime is 124001. The next prime is 124021. The reversal of 124002 is 200421.

It can be written as a sum of positive squares in only one way, i.e., 62001 + 62001 = 249^2 + 249^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=249.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (124001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1453 + ... + 1535.

2124002 is an apocalyptic number.

124002 is an abundant number, since it is smaller than the sum of its proper divisors (147945).

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

124002 is an equidigital number, since it uses as much as digits as its factorization.

124002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 124002 is about 352.1391770309. The cubic root of 124002 is about 49.8665776194.

Adding to 124002 its reverse (200421), we get a palindrome (324423).

The spelling of 124002 in words is "one hundred twenty-four thousand, two", and thus it is an iban number.

Divisors: 1 2 3 6 9 18 83 166 249 498 747 1494 6889 13778 20667 41334 62001 124002