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108969408 = 2633193319
BaseRepresentation
bin1100111111010…
…11110111000000
321121001012221000
412133223313000
5210344010113
614451332000
72462140032
oct637536700
9247035830
10108969408
1156568369
12305b1000
1319764252
1410687c52
159877373
hex67ebdc0

108969408 has 112 divisors (see below), whose sum is σ = 337312000. Its totient is φ = 34401024.

The previous prime is 108969397. The next prime is 108969409. The reversal of 108969408 is 804969801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108969409) 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, 31173 + ... + 34491.

Almost surely, 2108969408 is an apocalyptic number.

108969408 is a gapful number since it is divisible by the number (18) 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 108969408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168656000).

108969408 is an abundant number, since it is smaller than the sum of its proper divisors (228342592).

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

108969408 is a wasteful number, since it uses less digits than its factorization.

108969408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 108969408 is about 10438.8413150119. The cubic root of 108969408 is about 477.6409247525.

The spelling of 108969408 in words is "one hundred eight million, nine hundred sixty-nine thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 96 108 114 144 152 171 192 216 228 288 304 342 432 456 513 576 608 684 864 912 1026 1216 1368 1728 1824 2052 2736 3319 3648 4104 5472 6638 8208 9957 10944 13276 16416 19914 26552 29871 32832 39828 53104 59742 63061 79656 89613 106208 119484 126122 159312 179226 189183 212416 238968 252244 318624 358452 378366 477936 504488 567549 637248 716904 756732 955872 1008976 1135098 1433808 1513464 1702647 1911744 2017952 2270196 2867616 3026928 3405294 4035904 4540392 5735232 6053856 6810588 9080784 12107712 13621176 18161568 27242352 36323136 54484704 108969408