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89893 = 241373
BaseRepresentation
bin10101111100100101
311120022101
4111330211
510334033
61532101
7523036
oct257445
9146271
1089893
11615a1
1244031
1331bbb
1424a8d
151b97d
hex15f25

89893 has 4 divisors (see below), whose sum is σ = 90508. Its totient is φ = 89280.

The previous prime is 89891. The next prime is 89897. The reversal of 89893 is 39898.

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: 39898 = 219949.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 31329 = 242^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 89893 - 21 = 89891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89891) 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, 55 + ... + 427.

It is an arithmetic number, because the mean of its divisors is an integer number (22627).

289893 is an apocalyptic number.

It is an amenable number.

89893 is a deficient number, since it is larger than the sum of its proper divisors (615).

89893 is a wasteful number, since it uses less digits than its factorization.

89893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its digits is 15552, while the sum is 37.

The square root of 89893 is about 299.8216136305. The cubic root of 89893 is about 44.7962807818.

The spelling of 89893 in words is "eighty-nine thousand, eight hundred ninety-three".

Divisors: 1 241 373 89893