Search a number
-
+
163235072 = 287311132
BaseRepresentation
bin10011011101011…
…00010100000000
3102101011012102102
421232230110000
5313242010242
624110405532
74021322000
oct1156542400
9371135372
10163235072
1184161a20
12468008a8
1327a84100
1417972000
15e4e5e32
hex9bac500

163235072 has 216 divisors, whose sum is σ = 448862400. Its totient is φ = 58705920.

The previous prime is 163234987. The next prime is 163235101. The reversal of 163235072 is 270532361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12556538 + ... + 12556550.

Almost surely, 2163235072 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 163235072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224431200).

163235072 is an abundant number, since it is smaller than the sum of its proper divisors (285627328).

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

163235072 is an equidigital number, since it uses as much as digits as its factorization.

163235072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 163235072 is about 12776.3481480429. The cubic root of 163235072 is about 546.5180268762.

The spelling of 163235072 in words is "one hundred sixty-three million, two hundred thirty-five thousand, seventy-two".