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168845530 = 257172331199
BaseRepresentation
bin10100001000001…
…10000011011010
3102202201020112011
422010012003122
5321211024110
624430540134
74120110010
oct1204060332
9382636464
10168845530
1187344167
124866764a
1328c999c9
14185d28b0
15ec5348a
hexa1060da

168845530 has 128 divisors (see below), whose sum is σ = 398131200. Its totient is φ = 50181120.

The previous prime is 168845519. The next prime is 168845539. The reversal of 168845530 is 35548861.

168845530 is digitally balanced in base 3, 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 (168845539) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 848371 + ... + 848569.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2168845530 is an apocalyptic number.

168845530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168845530 is an abundant number, since it is smaller than the sum of its proper divisors (229285670).

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

168845530 is a wasteful number, since it uses less digits than its factorization.

168845530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 168845530 is about 12994.0574879442. The cubic root of 168845530 is about 552.7089823188.

The spelling of 168845530 in words is "one hundred sixty-eight million, eight hundred forty-five thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 17 23 31 34 35 46 62 70 85 115 119 155 161 170 199 217 230 238 310 322 391 398 434 527 595 713 782 805 995 1054 1085 1190 1393 1426 1610 1955 1990 2170 2635 2737 2786 3383 3565 3689 3910 4577 4991 5270 5474 6169 6766 6965 7130 7378 9154 9982 12121 12338 13685 13930 16915 18445 22885 23681 24242 24955 27370 30845 32039 33830 36890 43183 45770 47362 49910 60605 61690 64078 77809 84847 86366 104873 118405 121210 141887 155618 160195 169694 209746 215915 236810 283774 320390 389045 424235 431830 524365 544663 709435 734111 778090 848470 993209 1048730 1089326 1418870 1468222 1986418 2412079 2723315 3670555 4824158 4966045 5446630 7341110 9932090 12060395 16884553 24120790 33769106 84422765 168845530