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108190000 = 245431349
BaseRepresentation
bin1100111001011…
…01100100110000
321112120121210001
412130231210300
5210144040000
614422515344
72452412512
oct634554460
9245517701
10108190000
1156085826
1230295b54
1319550569
1410523bb2
15977146a
hex672d930

108190000 has 100 divisors (see below), whose sum is σ = 271163200. Its totient is φ = 41760000.

The previous prime is 108189979. The next prime is 108190001. The reversal of 108190000 is 91801.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×1081900002 = 23410152200000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 108190000.

It is not an unprimeable number, because it can be changed into a prime (108190001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 309826 + ... + 310174.

It is an arithmetic number, because the mean of its divisors is an integer number (2711632).

Almost surely, 2108190000 is an apocalyptic number.

108190000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135581600).

108190000 is an abundant number, since it is smaller than the sum of its proper divisors (162973200).

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

108190000 is an equidigital number, since it uses as much as digits as its factorization.

108190000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 108190000 is about 10401.4422076941. The cubic root of 108190000 is about 476.4994169837.

The spelling of 108190000 in words is "one hundred eight million, one hundred ninety thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 40 50 62 80 100 124 125 155 200 248 250 310 349 400 496 500 620 625 698 775 1000 1240 1250 1396 1550 1745 2000 2480 2500 2792 3100 3490 3875 5000 5584 6200 6980 7750 8725 10000 10819 12400 13960 15500 17450 19375 21638 27920 31000 34900 38750 43276 43625 54095 62000 69800 77500 86552 87250 108190 139600 155000 173104 174500 216380 218125 270475 310000 349000 432760 436250 540950 698000 865520 872500 1081900 1352375 1745000 2163800 2704750 3490000 4327600 5409500 6761875 10819000 13523750 21638000 27047500 54095000 108190000