Base | Representation |
---|---|
bin | 10100001000001… |
… | …11111000011100 |
3 | 102202201121210120 |
4 | 22010013320130 |
5 | 321211244040 |
6 | 24431034540 |
7 | 4120140600 |
oct | 1204077034 |
9 | 382647716 |
10 | 168853020 |
11 | 87349856 |
12 | 4866ba50 |
13 | 28ca023b |
14 | 185d5500 |
15 | ec557d0 |
hex | a107e1c |
168853020 has 144 divisors (see below), whose sum is σ = 557706240. Its totient is φ = 38054016.
The previous prime is 168853007. The next prime is 168853021. The reversal of 168853020 is 20358861.
It is a happy number.
It is a super-2 number, since 2×1688530202 = 57022684726240800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (168853021) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231897 + ... + 232623.
It is an arithmetic number, because the mean of its divisors is an integer number (3872960).
Almost surely, 2168853020 is an apocalyptic number.
168853020 is a gapful number since it is divisible by the number (10) 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 168853020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278853120).
168853020 is an abundant number, since it is smaller than the sum of its proper divisors (388853220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168853020 is a wasteful number, since it uses less digits than its factorization.
168853020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 832 (or 823 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 33.
The square root of 168853020 is about 12994.3456934160. The cubic root of 168853020 is about 552.7171549349.
The spelling of 168853020 in words is "one hundred sixty-eight million, eight hundred fifty-three thousand, twenty".
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