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75412 = 22171109
BaseRepresentation
bin10010011010010100
310211110001
4102122110
54403122
61341044
7432601
oct223224
9124401
1075412
1151727
1237784
132842c
141d6a8
1517527
hex12694

75412 has 12 divisors (see below), whose sum is σ = 139860. Its totient is φ = 35456.

The previous prime is 75407. The next prime is 75431. The reversal of 75412 is 21457.

It can be written as a sum of positive squares in 2 ways, for example, as 24336 + 51076 = 156^2 + 226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (11655).

275412 is an apocalyptic number.

It is an amenable number.

75412 is a deficient number, since it is larger than the sum of its proper divisors (64448).

75412 is a wasteful number, since it uses less digits than its factorization.

75412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1128 counting only the distinct ones).

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

The square root of 75412 is about 274.6124541968. The cubic root of 75412 is about 42.2487132412.

Adding to 75412 its reverse (21457), we get a palindrome (96869).

The spelling of 75412 in words is "seventy-five thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 1109 2218 4436 18853 37706 75412