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106823986 = 2132140433
BaseRepresentation
bin1100101111000…
…00000100110010
321110000012221221
412113200010302
5204321331421
614333335254
72434663123
oct627400462
9243005857
10106823986
1155332495
122b93752a
1319192879
141028a04a
1595a1841
hex65e0132

106823986 has 8 divisors (see below), whose sum is σ = 160361244. Its totient is φ = 53370240.

The previous prime is 106823953. The next prime is 106823989. The reversal of 106823986 is 689328601.

It can be written as a sum of positive squares in 2 ways, for example, as 106481761 + 342225 = 10319^2 + 585^2 .

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

It is a super-2 number, since 2×1068239862 = 22822727969856392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106823989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17575 + ... + 22858.

Almost surely, 2106823986 is an apocalyptic number.

106823986 is a deficient number, since it is larger than the sum of its proper divisors (53537258).

106823986 is a wasteful number, since it uses less digits than its factorization.

106823986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41756.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 106823986 is about 10335.5689732109. The cubic root of 106823986 is about 474.4854794370.

The spelling of 106823986 in words is "one hundred six million, eight hundred twenty-three thousand, nine hundred eighty-six".

Divisors: 1 2 1321 2642 40433 80866 53411993 106823986