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108332388 = 22323009233
BaseRepresentation
bin1100111010100…
…00010101100100
321112211212002200
412131100111210
5210213114023
614425534500
72453544603
oct635202544
9245755080
10108332388
11561727aa
1230344430
13195a0308
141055da3a
15979d743
hex6750564

108332388 has 18 divisors (see below), whose sum is σ = 273840294. Its totient is φ = 36110784.

The previous prime is 108332377. The next prime is 108332407. The reversal of 108332388 is 883233801.

It can be written as a sum of positive squares in only one way, i.e., 107993664 + 338724 = 10392^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3009233 = 108332388 / (1 + 0 + 8 + 3 + 3 + 2 + 3 + 8 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1504581 + ... + 1504652.

Almost surely, 2108332388 is an apocalyptic number.

108332388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

108332388 is an abundant number, since it is smaller than the sum of its proper divisors (165507906).

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

108332388 is a wasteful number, since it uses less digits than its factorization.

108332388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009243 (or 3009238 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 108332388 is about 10408.2845848872. The cubic root of 108332388 is about 476.7083643790.

The spelling of 108332388 in words is "one hundred eight million, three hundred thirty-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 3009233 6018466 9027699 12036932 18055398 27083097 36110796 54166194 108332388