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108051280 = 2451350641
BaseRepresentation
bin1100111000010…
…11101101010000
321112022120111021
412130023231100
5210130120110
614415525224
72451264211
oct634135520
9245276437
10108051280
1155aa0587
1230229814
131950238c
14104c9408
1597452da
hex670bb50

108051280 has 20 divisors (see below), whose sum is σ = 251219412. Its totient is φ = 43220480.

The previous prime is 108051247. The next prime is 108051287. The reversal of 108051280 is 82150801.

It can be written as a sum of positive squares in 2 ways, for example, as 80928016 + 27123264 = 8996^2 + 5208^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108051287) 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 3 ways as a sum of consecutive naturals, for example, 675241 + ... + 675400.

Almost surely, 2108051280 is an apocalyptic number.

108051280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108051280 is an abundant number, since it is smaller than the sum of its proper divisors (143168132).

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

108051280 is a wasteful number, since it uses less digits than its factorization.

108051280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350654 (or 1350648 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 108051280 is about 10394.7717627661. The cubic root of 108051280 is about 476.2956758180.

The spelling of 108051280 in words is "one hundred eight million, fifty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1350641 2701282 5402564 6753205 10805128 13506410 21610256 27012820 54025640 108051280