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13169790 = 234571229
BaseRepresentation
bin110010001111…
…010001111110
3220210002120000
4302033101332
511332413130
61150135130
7216640614
oct62172176
926702500
1013169790
117485727
1244b14a6
13296159a
141a6b6b4
151252260
hexc8f47e

13169790 has 80 divisors (see below), whose sum is σ = 36067680. Its totient is φ = 3447360.

The previous prime is 13169771. The next prime is 13169791. The reversal of 13169790 is 9796131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13169791) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57396 + ... + 57624.

It is an arithmetic number, because the mean of its divisors is an integer number (450846).

Almost surely, 213169790 is an apocalyptic number.

13169790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13169790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18033840).

13169790 is an abundant number, since it is smaller than the sum of its proper divisors (22897890).

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

13169790 is a wasteful number, since it uses less digits than its factorization.

13169790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13169790 is about 3629.0205290133. The cubic root of 13169790 is about 236.1527188292.

The spelling of 13169790 in words is "thirteen million, one hundred sixty-nine thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 71 81 90 135 142 162 213 229 270 355 405 426 458 639 687 710 810 1065 1145 1278 1374 1917 2061 2130 2290 3195 3435 3834 4122 5751 6183 6390 6870 9585 10305 11502 12366 16259 18549 19170 20610 28755 30915 32518 37098 48777 57510 61830 81295 92745 97554 146331 162590 185490 243885 292662 438993 487770 731655 877986 1316979 1463310 2194965 2633958 4389930 6584895 13169790