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168243192 = 2332131731039
BaseRepresentation
bin10100000011100…
…10111111111000
3102201120122021100
422001302333320
5321032240232
624410011400
74112020635
oct1201627770
9381518240
10168243192
1186a72667
1248416b60
1328b187b0
14184b718c
15eb84c7c
hexa072ff8

168243192 has 96 divisors (see below), whose sum is σ = 494020800. Its totient is φ = 51418368.

The previous prime is 168243191. The next prime is 168243193. The reversal of 168243192 is 291342861.

168243192 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168243191) and next prime (168243193).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168243191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161409 + ... + 162447.

It is an arithmetic number, because the mean of its divisors is an integer number (5146050).

Almost surely, 2168243192 is an apocalyptic number.

168243192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168243192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247010400).

168243192 is an abundant number, since it is smaller than the sum of its proper divisors (325777608).

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

168243192 is a wasteful number, since it uses less digits than its factorization.

168243192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1230 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 168243192 is about 12970.8593393036. The cubic root of 168243192 is about 552.0509562286.

The spelling of 168243192 in words is "one hundred sixty-eight million, two hundred forty-three thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 173 234 312 346 468 519 692 936 1038 1039 1384 1557 2076 2078 2249 3114 3117 4152 4156 4498 6228 6234 6747 8312 8996 9351 12456 12468 13494 13507 17992 18702 20241 24936 26988 27014 37404 40482 40521 53976 54028 74808 80964 81042 108056 121563 161928 162084 179747 243126 324168 359494 486252 539241 718988 972504 1078482 1437976 1617723 2156964 2336711 3235446 4313928 4673422 6470892 7010133 9346844 12941784 14020266 18693688 21030399 28040532 42060798 56081064 84121596 168243192