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8189990080 = 26525593719
BaseRepresentation
bin1111010000010100…
…10101010011000000
3210010202220121021221
413220022111103000
5113233114140310
63432403524424
7406645524046
oct75012252300
923122817257
108189990080
113523043848
121706989714
13a06a0419c
14579a02396
1532e028ada
hex1e82954c0

8189990080 has 28 divisors (see below), whose sum is σ = 19502414640. Its totient is φ = 3275995904.

The previous prime is 8189989999. The next prime is 8189990089. The reversal of 8189990080 is 800999818.

It is not an unprimeable number, because it can be changed into a prime (8189990089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12796540 + ... + 12797179.

Almost surely, 28189990080 is an apocalyptic number.

8189990080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8189990080 is an abundant number, since it is smaller than the sum of its proper divisors (11312424560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8189990080 is a wasteful number, since it uses less digits than its factorization.

8189990080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25593736 (or 25593726 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 52.

The square root of 8189990080 is about 90498.5639665072. The cubic root of 8189990080 is about 2015.7088004275.

The spelling of 8189990080 in words is "eight billion, one hundred eighty-nine million, nine hundred ninety thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 25593719 51187438 102374876 127968595 204749752 255937190 409499504 511874380 818999008 1023748760 1637998016 2047497520 4094995040 8189990080