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108820020 = 22351813667
BaseRepresentation
bin1100111110001…
…11011000110100
321120202122000010
412133013120310
5210324220040
614444220220
72460645351
oct637073064
9246678003
10108820020
1156476101
123053a670
131971125a
1410649628
159847e80
hex67c7634

108820020 has 24 divisors (see below), whose sum is σ = 304696224. Its totient is φ = 29018656.

The previous prime is 108820003. The next prime is 108820021. The reversal of 108820020 is 20028801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108820021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906774 + ... + 906893.

It is an arithmetic number, because the mean of its divisors is an integer number (12695676).

Almost surely, 2108820020 is an apocalyptic number.

108820020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108820020 is an abundant number, since it is smaller than the sum of its proper divisors (195876204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108820020 is a wasteful number, since it uses less digits than its factorization.

108820020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813679 (or 1813677 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 108820020 is about 10431.6834691242. The cubic root of 108820020 is about 477.4225562662.

Adding to 108820020 its reverse (20028801), we get a palindrome (128848821).

The spelling of 108820020 in words is "one hundred eight million, eight hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1813667 3627334 5441001 7254668 9068335 10882002 18136670 21764004 27205005 36273340 54410010 108820020