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8973888966 = 233731774891
BaseRepresentation
bin10000101101110001…
…01010110111000110
3212011101221210102000
420112320222313012
5121334303421331
64042245330130
7435244540410
oct102670526706
925141853360
108973888966
113895587669
1218a5406946
13b0023a493
14611b799b0
15377c700e6
hex216e2adc6

8973888966 has 64 divisors (see below), whose sum is σ = 22863029760. Its totient is φ = 2555845920.

The previous prime is 8973888941. The next prime is 8973889009. The reversal of 8973888966 is 6698883798.

8973888966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8973888894 and 8973888903.

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 31 ways as a sum of consecutive naturals, for example, 82381 + ... + 157271.

It is an arithmetic number, because the mean of its divisors is an integer number (357234840).

Almost surely, 28973888966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8973888966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11431514880).

8973888966 is an abundant number, since it is smaller than the sum of its proper divisors (13889140794).

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

8973888966 is a wasteful number, since it uses less digits than its factorization.

8973888966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75226 (or 75220 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 72.

The square root of 8973888966 is about 94730.6126128191. The cubic root of 8973888966 is about 2078.0702767872.

The spelling of 8973888966 in words is "eight billion, nine hundred seventy-three million, eight hundred eighty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 317 378 634 951 1902 2219 2853 4438 5706 6657 8559 13314 17118 19971 39942 59913 74891 119826 149782 224673 449346 524237 674019 1048474 1348038 1572711 2022057 3145422 4044114 4718133 9436266 14154399 23740447 28308798 47480894 71221341 142442682 166183129 213664023 332366258 427328046 498549387 640992069 997098774 1281984138 1495648161 2991296322 4486944483 8973888966