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90349 = 712907
BaseRepresentation
bin10110000011101101
311120221021
4112003231
510342344
61534141
7524260
oct260355
9146837
1090349
1161976
1244351
133217c
1424cd7
151bb84
hex160ed

90349 has 4 divisors (see below), whose sum is σ = 103264. Its totient is φ = 77436.

The previous prime is 90313. The next prime is 90353. The reversal of 90349 is 94309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90349 - 211 = 88301 is a prime.

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

90349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90359) 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, 6447 + ... + 6460.

It is an arithmetic number, because the mean of its divisors is an integer number (25816).

290349 is an apocalyptic number.

It is an amenable number.

90349 is a deficient number, since it is larger than the sum of its proper divisors (12915).

90349 is a wasteful number, since it uses less digits than its factorization.

90349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 90349 is about 300.5811038638. The cubic root of 90349 is about 44.8718990571.

The spelling of 90349 in words is "ninety thousand, three hundred forty-nine".

Divisors: 1 7 12907 90349