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9689889830 = 255323378467
BaseRepresentation
bin10010000011000111…
…11111110000100110
3221000022020101221112
421001203333300212
5124321102433310
64241303545022
7462060463445
oct110143776046
927008211845
109689889830
114122765715
121a6515b172
13bb568c92a
1467ccbad5c
153baa53705
hex2418ffc26

9689889830 has 32 divisors (see below), whose sum is σ = 17847389664. Its totient is φ = 3786455296.

The previous prime is 9689889829. The next prime is 9689889893. The reversal of 9689889830 is 389889869.

9689889830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 84257 + ... + 162723.

It is an arithmetic number, because the mean of its divisors is an integer number (557730927).

Almost surely, 29689889830 is an apocalyptic number.

9689889830 is a deficient number, since it is larger than the sum of its proper divisors (8157499834).

9689889830 is a wasteful number, since it uses less digits than its factorization.

9689889830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78760.

The product of its (nonzero) digits is 53747712, while the sum is 68.

The square root of 9689889830 is about 98437.2380250482. The cubic root of 9689889830 is about 2131.9300271133.

The spelling of 9689889830 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 53 106 233 265 466 530 1165 2330 12349 24698 61745 78467 123490 156934 392335 784670 4158751 8317502 18282811 20793755 36565622 41587510 91414055 182828110 968988983 1937977966 4844944915 9689889830