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163055489884 = 22737891768421
BaseRepresentation
bin1001011111011011011…
…1010101001101011100
3120120212121200010010221
42113312313111031130
510132414201134014
6202523501011124
714531444536660
oct2276667251534
9516777603127
10163055489884
1163173633a11
1227726b53aa4
13124b72ac2c1
147c6b6428a0
154394d42b24
hex25f6dd535c

163055489884 has 48 divisors (see below), whose sum is σ = 338688181440. Its totient is φ = 67228254720.

The previous prime is 163055489803. The next prime is 163055489899. The reversal of 163055489884 is 488984550361.

163055489884 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1630554898842 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792007 + ... + 976414.

It is an arithmetic number, because the mean of its divisors is an integer number (7056003780).

Almost surely, 2163055489884 is an apocalyptic number.

163055489884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163055489884 is an abundant number, since it is smaller than the sum of its proper divisors (175632691556).

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

163055489884 is a wasteful number, since it uses less digits than its factorization.

163055489884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768558 (or 1768556 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 61.

The spelling of 163055489884 in words is "one hundred sixty-three billion, fifty-five million, four hundred eighty-nine thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 37 74 89 148 178 259 356 518 623 1036 1246 2492 3293 6586 13172 23051 46102 92204 1768421 3536842 7073684 12378947 24757894 49515788 65431577 130863154 157389469 261726308 314778938 458021039 629557876 916042078 1101726283 1832084156 2203452566 4406905132 5823410353 11646820706 23293641412 40763872471 81527744942 163055489884