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106888989 = 381143933
BaseRepresentation
bin1100101111011…
…11111100011101
321110010112010110
412113233330131
5204330421424
614335000233
72435353464
oct627577435
9243115113
10106888989
1155377309
122b969079
13191b632c
14102a59db
1595b5c29
hex65eff1d

106888989 has 8 divisors (see below), whose sum is σ = 142697632. Its totient is φ = 71169840.

The previous prime is 106888987. The next prime is 106888993. The reversal of 106888989 is 989888601.

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

It is not a de Polignac number, because 106888989 - 21 = 106888987 is a prime.

It is a super-2 number, since 2×1068889892 = 22850511938884242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106888987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19534 + ... + 24399.

It is an arithmetic number, because the mean of its divisors is an integer number (17837204).

Almost surely, 2106888989 is an apocalyptic number.

It is an amenable number.

106888989 is a deficient number, since it is larger than the sum of its proper divisors (35808643).

106888989 is an equidigital number, since it uses as much as digits as its factorization.

106888989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44747.

The product of its (nonzero) digits is 1990656, while the sum is 57.

The square root of 106888989 is about 10338.7131210804. The cubic root of 106888989 is about 474.5817022888.

The spelling of 106888989 in words is "one hundred six million, eight hundred eighty-eight thousand, nine hundred eighty-nine".

Divisors: 1 3 811 2433 43933 131799 35629663 106888989