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8103814989 = 38930351367
BaseRepresentation
bin1111000110000011…
…00110011101001101
3202220202202110021220
413203001212131031
5113044034034424
63420044513553
7404551201524
oct74301463515
922822673256
108103814989
113489435166
1216a1b4b8b9
139c1bc11ca
1456c3ad4bb
153266a5579
hex1e306674d

8103814989 has 8 divisors (see below), whose sum is σ = 10926492480. Its totient is φ = 5341840416.

The previous prime is 8103814981. The next prime is 8103814991. The reversal of 8103814989 is 9894183018.

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

It is not a de Polignac number, because 8103814989 - 23 = 8103814981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8103814981) 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, 15175417 + ... + 15175950.

It is an arithmetic number, because the mean of its divisors is an integer number (1365811560).

Almost surely, 28103814989 is an apocalyptic number.

8103814989 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8103814989 is a deficient number, since it is larger than the sum of its proper divisors (2822677491).

8103814989 is a wasteful number, since it uses less digits than its factorization.

8103814989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30351459.

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 8103814989 is about 90021.1918883548. The cubic root of 8103814989 is about 2008.6140945056.

The spelling of 8103814989 in words is "eight billion, one hundred three million, eight hundred fourteen thousand, nine hundred eighty-nine".

Divisors: 1 3 89 267 30351367 91054101 2701271663 8103814989