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108321693 = 3109331259
BaseRepresentation
bin1100111010011…
…01101110011101
321112211022102120
412131031232131
5210212243233
614425413153
72453501454
oct635155635
9245738376
10108321693
1156165767
123033a1b9
131959849c
1410559b9b
15979a4b3
hex674db9d

108321693 has 8 divisors (see below), whose sum is σ = 145754400. Its totient is φ = 71551728.

The previous prime is 108321691. The next prime is 108321721. The reversal of 108321693 is 396123801.

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

It is not a de Polignac number, because 108321693 - 21 = 108321691 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108321691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165303 + ... + 165956.

It is an arithmetic number, because the mean of its divisors is an integer number (18219300).

Almost surely, 2108321693 is an apocalyptic number.

It is an amenable number.

108321693 is a deficient number, since it is larger than the sum of its proper divisors (37432707).

108321693 is a wasteful number, since it uses less digits than its factorization.

108321693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331371.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 108321693 is about 10407.7707987830. The cubic root of 108321693 is about 476.6926763536.

The spelling of 108321693 in words is "one hundred eight million, three hundred twenty-one thousand, six hundred ninety-three".

Divisors: 1 3 109 327 331259 993777 36107231 108321693