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75028 = 2218757
BaseRepresentation
bin10010010100010100
310210220211
4102110110
54400103
61335204
7431512
oct222424
9123824
1075028
1151408
1237504
13281c5
141d4b2
151736d
hex12514

75028 has 6 divisors (see below), whose sum is σ = 131306. Its totient is φ = 37512.

The previous prime is 75017. The next prime is 75029. The reversal of 75028 is 82057.

It can be written as a sum of positive squares in only one way, i.e., 66564 + 8464 = 258^2 + 92^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9375 + ... + 9382.

275028 is an apocalyptic number.

It is an amenable number.

75028 is a deficient number, since it is larger than the sum of its proper divisors (56278).

75028 is a wasteful number, since it uses less digits than its factorization.

75028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18761 (or 18759 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 75028 is about 273.9123947542. The cubic root of 75028 is about 42.1768806376.

The spelling of 75028 in words is "seventy-five thousand, twenty-eight".

Divisors: 1 2 4 18757 37514 75028