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108428208 = 24373131031
BaseRepresentation
bin1100111011001…
…11101110110000
321120000201112120
412131213232300
5210224200313
614431554240
72454424140
oct635475660
9246021476
10108428208
1156228799
123038b980
1319604b05
1410586920
1597bbd23
hex6767bb0

108428208 has 80 divisors (see below), whose sum is σ = 321455616. Its totient is φ = 30850560.

The previous prime is 108428143. The next prime is 108428263. The reversal of 108428208 is 802824801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104653 + ... + 105683.

Almost surely, 2108428208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108428208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160727808).

108428208 is an abundant number, since it is smaller than the sum of its proper divisors (213027408).

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

108428208 is a wasteful number, since it uses less digits than its factorization.

108428208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 108428208 is about 10412.8866314774. The cubic root of 108428208 is about 476.8488724809.

It can be divided in two parts, 1084 and 28208, that added together give a palindrome (29292).

The spelling of 108428208 in words is "one hundred eight million, four hundred twenty-eight thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 313 336 626 939 1031 1252 1878 2062 2191 2504 3093 3756 4124 4382 5008 6186 6573 7217 7512 8248 8764 12372 13146 14434 15024 16496 17528 21651 24744 26292 28868 35056 43302 49488 52584 57736 86604 105168 115472 173208 322703 346416 645406 968109 1290812 1936218 2258921 2581624 3872436 4517842 5163248 6776763 7744872 9035684 13553526 15489744 18071368 27107052 36142736 54214104 108428208