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105563089 = 211500299
BaseRepresentation
bin1100100101011…
…00001111010001
321100122011100001
412102230033101
5204011004324
614250330001
72421162052
oct622541721
9240564301
10105563089
1154651125
122b429901
1318b40988
141003c729
159402e44
hex64ac3d1

105563089 has 4 divisors (see below), whose sum is σ = 106063600. Its totient is φ = 105062580.

The previous prime is 105563057. The next prime is 105563099. The reversal of 105563089 is 980365501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 980365501 = 2342624587.

It is a cyclic number.

It is not a de Polignac number, because 105563089 - 25 = 105563057 is a prime.

It is a super-2 number, since 2×1055630892 = 22287131518443842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105563099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249939 + ... + 250360.

It is an arithmetic number, because the mean of its divisors is an integer number (26515900).

Almost surely, 2105563089 is an apocalyptic number.

It is an amenable number.

105563089 is a deficient number, since it is larger than the sum of its proper divisors (500511).

105563089 is an equidigital number, since it uses as much as digits as its factorization.

105563089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500510.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 105563089 is about 10274.3899575595. The cubic root of 105563089 is about 472.6112224757.

The spelling of 105563089 in words is "one hundred five million, five hundred sixty-three thousand, eighty-nine".

Divisors: 1 211 500299 105563089