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849696890 = 257171793989
BaseRepresentation
bin110010101001010…
…101100001111010
32012012212002000012
4302221111201322
53220010300030
6220151541522
730025206260
oct6251254172
92165762005
10849696890
113a66a4939
121b868a8a2
13107063333
1480bc4430
154e8e2095
hex32a5587a

849696890 has 64 divisors (see below), whose sum is σ = 1861574400. Its totient is φ = 272587776.

The previous prime is 849696857. The next prime is 849696893. The reversal of 849696890 is 98696948.

849696890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (849696893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211016 + ... + 215004.

It is an arithmetic number, because the mean of its divisors is an integer number (29087100).

Almost surely, 2849696890 is an apocalyptic number.

849696890 is an abundant number, since it is smaller than the sum of its proper divisors (1011877510).

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

849696890 is a wasteful number, since it uses less digits than its factorization.

849696890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The square root of 849696890 is about 29149.5607171017. The cubic root of 849696890 is about 947.1556251812.

The spelling of 849696890 in words is "eight hundred forty-nine million, six hundred ninety-six thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 179 238 358 595 895 1190 1253 1790 2506 3043 3989 6086 6265 7978 12530 15215 19945 21301 27923 30430 39890 42602 55846 67813 106505 135626 139615 213010 279230 339065 474691 678130 714031 949382 1428062 2373455 3570155 4746910 4998217 7140310 9996434 12138527 24277054 24991085 49982170 60692635 84969689 121385270 169939378 424848445 849696890