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75256 = 2323409
BaseRepresentation
bin10010010111111000
310211020021
4102113320
54402011
61340224
7432256
oct222770
9124207
1075256
11515a5
1237674
132833c
141d5d6
1517471
hex125f8

75256 has 16 divisors (see below), whose sum is σ = 147600. Its totient is φ = 35904.

The previous prime is 75253. The next prime is 75269. The reversal of 75256 is 65257.

It is a happy number.

75256 is nontrivially palindromic in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 75256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75253) 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, 21 + ... + 388.

It is an arithmetic number, because the mean of its divisors is an integer number (9225).

275256 is an apocalyptic number.

75256 is the 174-th centered pentagonal number.

It is an amenable number.

75256 is a deficient number, since it is larger than the sum of its proper divisors (72344).

75256 is a wasteful number, since it uses less digits than its factorization.

75256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 434 counting only the distinct ones).

The product of its digits is 2100, while the sum is 25.

The square root of 75256 is about 274.3282705082. The cubic root of 75256 is about 42.2195607228.

Subtracting from 75256 its reverse (65257), we obtain a palindrome (9999).

It can be divided in two parts, 7525 and 6, that multiplied together give a triangular number (45150 = T300).

The spelling of 75256 in words is "seventy-five thousand, two hundred fifty-six".

Divisors: 1 2 4 8 23 46 92 184 409 818 1636 3272 9407 18814 37628 75256