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90193 = 1947101
BaseRepresentation
bin10110000001010001
311120201111
4112001101
510341233
61533321
7523645
oct260121
9146644
1090193
1161844
1244241
133208c
1424c25
151bacd
hex16051

90193 has 8 divisors (see below), whose sum is σ = 97920. Its totient is φ = 82800.

The previous prime is 90191. The next prime is 90197. The reversal of 90193 is 39109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90193 - 21 = 90191 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 (90191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (12240).

290193 is an apocalyptic number.

It is an amenable number.

90193 is a deficient number, since it is larger than the sum of its proper divisors (7727).

90193 is a wasteful number, since it uses less digits than its factorization.

90193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 90193 is about 300.3214944022. The cubic root of 90193 is about 44.8460583397.

The spelling of 90193 in words is "ninety thousand, one hundred ninety-three".

Divisors: 1 19 47 101 893 1919 4747 90193