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108786385 = 5174112497
BaseRepresentation
bin1100111101111…
…11001011010001
321120200220212101
412132333023101
5210322131020
614443400401
72460445321
oct636771321
9246626771
10108786385
1156452904
1230523101
13196cbb56
141063b281
15983d00a
hex67bf2d1

108786385 has 8 divisors (see below), whose sum is σ = 130629096. Its totient is φ = 86972160.

The previous prime is 108786361. The next prime is 108786421. The reversal of 108786385 is 583687801.

It can be written as a sum of positive squares in 4 ways, for example, as 147456 + 108638929 = 384^2 + 10423^2 .

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

It is not a de Polignac number, because 108786385 - 27 = 108786257 is a prime.

It is a super-2 number, since 2×1087863852 = 23668955122736450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 2457 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (16328637).

Almost surely, 2108786385 is an apocalyptic number.

It is an amenable number.

108786385 is a deficient number, since it is larger than the sum of its proper divisors (21842711).

108786385 is a wasteful number, since it uses less digits than its factorization.

108786385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14243.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 108786385 is about 10430.0711886353. The cubic root of 108786385 is about 477.3733626147.

The spelling of 108786385 in words is "one hundred eight million, seven hundred eighty-six thousand, three hundred eighty-five".

Divisors: 1 5 1741 8705 12497 62485 21757277 108786385