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108933289 = 1912914441
BaseRepresentation
bin1100111111000…
…11000010101001
321120222101101021
412133203002221
5210341331124
614450452441
72461626523
oct637430251
9246871337
10108933289
1156543213
1230594121
131975098a
1410678a13
15986b7e4
hex67e30a9

108933289 has 8 divisors (see below), whose sum is σ = 114781280. Its totient is φ = 103096800.

The previous prime is 108933283. The next prime is 108933311. The reversal of 108933289 is 982339801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108933289 - 23 = 108933281 is a prime.

It is a super-2 number, since 2×1089332892 = 23732922904715042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108933281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22309 + ... + 26749.

It is an arithmetic number, because the mean of its divisors is an integer number (14347660).

Almost surely, 2108933289 is an apocalyptic number.

108933289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108933289 is a deficient number, since it is larger than the sum of its proper divisors (5847991).

108933289 is a wasteful number, since it uses less digits than its factorization.

108933289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 108933289 is about 10437.1111424570. Note that the first 4 decimals coincide. The cubic root of 108933289 is about 477.5881459671.

The spelling of 108933289 in words is "one hundred eight million, nine hundred thirty-three thousand, two hundred eighty-nine".

Divisors: 1 19 1291 4441 24529 84379 5733331 108933289