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108863980 = 22548711177
BaseRepresentation
bin1100111110100…
…10000111101100
321120211212022021
412133102013230
5210332121410
614445155524
72461220461
oct637220754
9246755267
10108863980
11564a6135
123055bba4
1319728274
141065b668
159855eda
hex67d21ec

108863980 has 24 divisors (see below), whose sum is σ = 229104288. Its totient is φ = 43452288.

The previous prime is 108863969. The next prime is 108863981. The reversal of 108863980 is 89368801.

It is a happy number.

It is a super-3 number, since 3×1088639803 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (108863981) 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, 4152 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (9546012).

Almost surely, 2108863980 is an apocalyptic number.

108863980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108863980 is an abundant number, since it is smaller than the sum of its proper divisors (120240308).

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

108863980 is a wasteful number, since it uses less digits than its factorization.

108863980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673 (or 11671 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 108863980 is about 10433.7902988320. The cubic root of 108863980 is about 477.4868357070.

The spelling of 108863980 in words is "one hundred eight million, eight hundred sixty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 487 974 1948 2435 4870 9740 11177 22354 44708 55885 111770 223540 5443199 10886398 21772796 27215995 54431990 108863980