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163980032 = 281933713
BaseRepresentation
bin10011100011000…
…10001100000000
3102102120001022112
421301202030000
5313434330112
624134354452
74030543616
oct1161421400
9372501275
10163980032
1184620697
1246abba28
1327c85208
1417ac76b6
15e5e1a22
hex9c62300

163980032 has 36 divisors (see below), whose sum is σ = 344557080. Its totient is φ = 77672448.

The previous prime is 163980031. The next prime is 163980043. The reversal of 163980032 is 230089361.

163980032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (163980031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11993 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (9571030).

Almost surely, 2163980032 is an apocalyptic number.

It is an amenable number.

163980032 is an abundant number, since it is smaller than the sum of its proper divisors (180577048).

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

163980032 is an equidigital number, since it uses as much as digits as its factorization.

163980032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33748 (or 33734 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 163980032 is about 12805.4688317141. The cubic root of 163980032 is about 547.3481513515.

The spelling of 163980032 in words is "one hundred sixty-three million, nine hundred eighty thousand, thirty-two".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 256 304 608 1216 2432 4864 33713 67426 134852 269704 539408 640547 1078816 1281094 2157632 2562188 4315264 5124376 8630528 10248752 20497504 40995008 81990016 163980032