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108938880 = 2732518913
BaseRepresentation
bin1100111111001…
…00011010000000
321120222200001100
412133210122000
5210342021010
614450534400
72461652031
oct637443200
9246880040
10108938880
1156547436
1230597400
131975339b
141067aa88
15986d2c0
hex67e4680

108938880 has 96 divisors (see below), whose sum is σ = 376199460. Its totient is φ = 29048832.

The previous prime is 108938831. The next prime is 108938891. The reversal of 108938880 is 88839801.

It can be written as a sum of positive squares in 2 ways, for example, as 103063104 + 5875776 = 10152^2 + 2424^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3697 + ... + 15216.

Almost surely, 2108938880 is an apocalyptic number.

108938880 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 108938880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188099730).

108938880 is an abundant number, since it is smaller than the sum of its proper divisors (267260580).

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

108938880 is a wasteful number, since it uses less digits than its factorization.

108938880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938 (or 18923 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 108938880 is about 10437.3789813343. The cubic root of 108938880 is about 477.5963165629.

The spelling of 108938880 in words is "one hundred eight million, nine hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 18913 37826 56739 75652 94565 113478 151304 170217 189130 226956 283695 302608 340434 378260 453912 567390 605216 680868 756520 851085 907824 1134780 1210432 1361736 1513040 1702170 1815648 2269560 2420864 2723472 3026080 3404340 3631296 4539120 5446944 6052160 6808680 7262592 9078240 10893888 12104320 13617360 18156480 21787776 27234720 36312960 54469440 108938880