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124072 = 23131193
BaseRepresentation
bin11110010010101000
320022012021
4132102220
512432242
62354224
71024504
oct362250
9208167
10124072
1185243
125b974
1344620
1433304
1526b67
hex1e4a8

124072 has 16 divisors (see below), whose sum is σ = 250740. Its totient is φ = 57216.

The previous prime is 124067. The next prime is 124087. The reversal of 124072 is 270421.

Adding to 124072 its reverse (270421), we get a palindrome (394493).

It can be written as a sum of positive squares in 2 ways, for example, as 119716 + 4356 = 346^2 + 66^2 .

It is a super-2 number, since 2×1240722 = 30787722368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493 + ... + 700.

2124072 is an apocalyptic number.

It is an amenable number.

124072 is an abundant number, since it is smaller than the sum of its proper divisors (126668).

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

124072 is a wasteful number, since it uses less digits than its factorization.

124072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 124072 is about 352.2385555274. The cubic root of 124072 is about 49.8759591987.

The spelling of 124072 in words is "one hundred twenty-four thousand, seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 13 26 52 104 1193 2386 4772 9544 15509 31018 62036 124072