Search a number
-
+
163127868 = 22323837121
BaseRepresentation
bin10011011100100…
…10001000111100
3102100221202100220
421232102020330
5313230042433
624104221340
74020364311
oct1156221074
9370852326
10163127868
1184099422
124676a850
1327a47387
1417944d08
15e4c42b3
hex9b9223c

163127868 has 48 divisors (see below), whose sum is σ = 402022656. Its totient is φ = 51377920.

The previous prime is 163127849. The next prime is 163127873. The reversal of 163127868 is 868721361.

It is a super-2 number, since 2×1631278682 = 53221402636450848, which 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19348 + ... + 26468.

It is an arithmetic number, because the mean of its divisors is an integer number (8375472).

Almost surely, 2163127868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163127868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201011328).

163127868 is an abundant number, since it is smaller than the sum of its proper divisors (238894788).

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

163127868 is a wasteful number, since it uses less digits than its factorization.

163127868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234 (or 7232 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 163127868 is about 12772.1520504573. The cubic root of 163127868 is about 546.3983594776.

The spelling of 163127868 in words is "one hundred sixty-three million, one hundred twenty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 83 92 138 166 249 276 332 498 996 1909 3818 5727 7121 7636 11454 14242 21363 22908 28484 42726 85452 163783 327566 491349 591043 655132 982698 1182086 1773129 1965396 2364172 3546258 7092516 13593989 27187978 40781967 54375956 81563934 163127868