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9090000606 = 23173110128463
BaseRepresentation
bin10000111011100111…
…00110011011011110
3212110111102212122010
420131303212123132
5122104020004411
64101554132050
7441154505331
oct103563463336
925414385563
109090000606
113945082aa5
121918281026
13b1b3025ab
14623362618
153830587a6
hex21dce66de

9090000606 has 64 divisors (see below), whose sum is σ = 20067803136. Its totient is φ = 2732352000.

The previous prime is 9090000559. The next prime is 9090000607. The reversal of 9090000606 is 6060000909.

It is a super-2 number, since 2×90900006062 (a number of 21 digits) contains 22 as substring.

9090000606 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090000607) 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, 305131 + ... + 333593.

It is an arithmetic number, because the mean of its divisors is an integer number (313559424).

Almost surely, 29090000606 is an apocalyptic number.

9090000606 is an abundant number, since it is smaller than the sum of its proper divisors (10977802530).

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

9090000606 is a wasteful number, since it uses less digits than its factorization.

9090000606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28617.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9090000606 is about 95341.4946704739. The cubic root of 9090000606 is about 2086.9944976810.

The spelling of 9090000606 in words is "nine billion, ninety million, six hundred six", and thus it is an aban number.

Divisors: 1 2 3 6 17 31 34 51 62 93 101 102 186 202 303 527 606 1054 1581 1717 3131 3162 3434 5151 6262 9393 10302 18786 28463 53227 56926 85389 106454 159681 170778 319362 483871 882353 967742 1451613 1764706 2647059 2874763 2903226 5294118 5749526 8624289 15000001 17248578 30000002 45000003 48870971 89117653 90000006 97741942 146612913 178235306 267352959 293225826 534705918 1515000101 3030000202 4545000303 9090000606