Search a number
-
+
92749 = 137677
BaseRepresentation
bin10110101001001101
311201020011
4112221031
510431444
61553221
7534256
oct265115
9151204
1092749
1163758
1245811
13332a7
1425b2d
151c734
hex16a4d

92749 has 4 divisors (see below), whose sum is σ = 93564. Its totient is φ = 91936.

The previous prime is 92737. The next prime is 92753. The reversal of 92749 is 94729.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94729 = 432203.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 13225 = 282^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 92749 - 25 = 92717 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

92749 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 92749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92779) 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, 202 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (23391).

292749 is an apocalyptic number.

It is an amenable number.

92749 is a deficient number, since it is larger than the sum of its proper divisors (815).

92749 is a wasteful number, since it uses less digits than its factorization.

92749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its digits is 4536, while the sum is 31.

The square root of 92749 is about 304.5472048796. The cubic root of 92749 is about 45.2657525815.

It can be divided in two parts, 92 and 749, that added together give a square (841 = 292).

The spelling of 92749 in words is "ninety-two thousand, seven hundred forty-nine".

Divisors: 1 137 677 92749