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108019873 = 1321413881
BaseRepresentation
bin1100111000001…
…00000010100001
321112020222102001
412130010002201
5210123113443
614415124001
72451103513
oct634040241
9245228361
10108019873
1155a79a25
1230213601
13194c0cb0
14104bbbb3
15973ad4d
hex67040a1

108019873 has 8 divisors (see below), whose sum is σ = 116413416. Its totient is φ = 99638400.

The previous prime is 108019861. The next prime is 108019889. The reversal of 108019873 is 378910801.

It can be written as a sum of positive squares in 4 ways, for example, as 29289744 + 78730129 = 5412^2 + 8873^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-108019873 is a prime.

It is a super-2 number, since 2×1080198732 = 23336585925872258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108019823) 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, 25893 + ... + 29773.

It is an arithmetic number, because the mean of its divisors is an integer number (14551677).

Almost surely, 2108019873 is an apocalyptic number.

108019873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

108019873 is a deficient number, since it is larger than the sum of its proper divisors (8393543).

108019873 is a wasteful number, since it uses less digits than its factorization.

108019873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 108019873 is about 10393.2609415909. The cubic root of 108019873 is about 476.2495234482.

The spelling of 108019873 in words is "one hundred eight million, nineteen thousand, eight hundred seventy-three".

Divisors: 1 13 2141 3881 27833 50453 8309221 108019873