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108568390 = 25713711321
BaseRepresentation
bin1100111100010…
…01111101000110
321120021211211111
412132021331012
5210243142030
614434555234
72455546630
oct636117506
9246254744
10108568390
1156314047
1230438b1a
1319653868
14105c1a50
1597e862a
hex6789f46

108568390 has 32 divisors (see below), whose sum is σ = 224990784. Its totient is φ = 36948480.

The previous prime is 108568387. The next prime is 108568391. The reversal of 108568390 is 93865801.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108568391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3930 + ... + 15250.

It is an arithmetic number, because the mean of its divisors is an integer number (7030962).

Almost surely, 2108568390 is an apocalyptic number.

108568390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108568390 is an abundant number, since it is smaller than the sum of its proper divisors (116422394).

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

108568390 is a wasteful number, since it uses less digits than its factorization.

108568390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 108568390 is about 10419.6156359052. The cubic root of 108568390 is about 477.0542828727.

The spelling of 108568390 in words is "one hundred eight million, five hundred sixty-eight thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 137 274 685 959 1370 1918 4795 9590 11321 22642 56605 79247 113210 158494 396235 792470 1550977 3101954 7754885 10856839 15509770 21713678 54284195 108568390