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90806341 = 206943889
BaseRepresentation
bin1010110100110…
…01100001000101
320022212102212211
411122121201011
5141221300331
613002143421
72151561343
oct532314105
9208772784
1090806341
114729216a
12264b1b71
1315a74c82
14c0ba993
157e8a8b1
hex5699845

90806341 has 4 divisors (see below), whose sum is σ = 90852300. Its totient is φ = 90760384.

The previous prime is 90806327. The next prime is 90806351. The reversal of 90806341 is 14360809.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52983841 + 37822500 = 7279^2 + 6150^2 .

It is a cyclic number.

It is not a de Polignac number, because 90806341 - 27 = 90806213 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 (90806311) 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, 19876 + ... + 24013.

It is an arithmetic number, because the mean of its divisors is an integer number (22713075).

Almost surely, 290806341 is an apocalyptic number.

It is an amenable number.

90806341 is a deficient number, since it is larger than the sum of its proper divisors (45959).

90806341 is a wasteful number, since it uses less digits than its factorization.

90806341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45958.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 90806341 is about 9529.2361183885. The cubic root of 90806341 is about 449.4748458148.

The spelling of 90806341 in words is "ninety million, eight hundred six thousand, three hundred forty-one".

Divisors: 1 2069 43889 90806341