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106544905 = 521308981
BaseRepresentation
bin1100101100110…
…11111100001001
321102111001010121
412112123330021
5204233414110
614323343241
72432421355
oct626337411
9242431117
10106544905
1155161845
122b821b21
13190c582c
1410216465
159548cda
hex659bf09

106544905 has 4 divisors (see below), whose sum is σ = 127853892. Its totient is φ = 85235920.

The previous prime is 106544881. The next prime is 106544953. The reversal of 106544905 is 509445601.

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 45751696 + 60793209 = 6764^2 + 7797^2 .

It is not a de Polignac number, because 106544905 - 27 = 106544777 is a prime.

It is a super-2 number, since 2×1065449052 = 22703633562918050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10654486 + ... + 10654495.

It is an arithmetic number, because the mean of its divisors is an integer number (31963473).

Almost surely, 2106544905 is an apocalyptic number.

It is an amenable number.

106544905 is a deficient number, since it is larger than the sum of its proper divisors (21308987).

106544905 is an equidigital number, since it uses as much as digits as its factorization.

106544905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21308986.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 106544905 is about 10322.0591453450. The cubic root of 106544905 is about 474.0719163671.

The spelling of 106544905 in words is "one hundred six million, five hundred forty-four thousand, nine hundred five".

Divisors: 1 5 21308981 106544905