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8029090989 = 328819101159
BaseRepresentation
bin1110111101001001…
…00011010010101101
3202201120011002020100
413132210203102231
5112420421402424
63404415141313
7402653101353
oct73644432255
922646132210
108029090989
113450237997
121680b14839
139ac58a41a
145624bb7d3
1531ed44dc9
hex1de9234ad

8029090989 has 12 divisors (see below), whose sum is σ = 11599005600. Its totient is φ = 5352067464.

The previous prime is 8029090987. The next prime is 8029091011. The reversal of 8029090989 is 9890909208.

It is not a de Polignac number, because 8029090989 - 21 = 8029090987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8029090987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28792 + ... + 129950.

It is an arithmetic number, because the mean of its divisors is an integer number (966583800).

Almost surely, 28029090989 is an apocalyptic number.

It is an amenable number.

8029090989 is a deficient number, since it is larger than the sum of its proper divisors (3569914611).

8029090989 is a wasteful number, since it uses less digits than its factorization.

8029090989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109984 (or 109981 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 8029090989 is about 89605.1951005074. The cubic root of 8029090989 is about 2002.4213165135.

The spelling of 8029090989 in words is "eight billion, twenty-nine million, ninety thousand, nine hundred eighty-nine".

Divisors: 1 3 9 8819 26457 79371 101159 303477 910431 892121221 2676363663 8029090989