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289173060 = 223251131771
BaseRepresentation
bin10001001111000…
…110111001000100
3202011010111212100
4101033012321010
51043012014220
644405552100
710110634101
oct2117067104
9664114770
10289173060
1113925a000
1280a15630
1347ba9a27
142a595aa8
151a5c0d90
hex113c6e44

289173060 has 288 divisors, whose sum is σ = 1035949824. Its totient is φ = 65049600.

The previous prime is 289173047. The next prime is 289173097. The reversal of 289173060 is 60371982.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 95 ways as a sum of consecutive naturals, for example, 4072825 + ... + 4072895.

It is an arithmetic number, because the mean of its divisors is an integer number (3597048).

Almost surely, 2289173060 is an apocalyptic number.

289173060 is a gapful number since it is divisible by the number (20) 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 289173060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517974912).

289173060 is an abundant number, since it is smaller than the sum of its proper divisors (746776764).

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

289173060 is a wasteful number, since it uses less digits than its factorization.

289173060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 289173060 is about 17005.0892382251. The cubic root of 289173060 is about 661.2808460185.

The spelling of 289173060 in words is "two hundred eighty-nine million, one hundred seventy-three thousand, sixty".