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289122664 = 2344238171
BaseRepresentation
bin10001001110111…
…010100101101000
3202011000221201211
4101032322211220
51043003411124
644404522504
710110334135
oct2116724550
9664027654
10289122664
11139225156
12809b0434
1347b8cacc
142a58158c
151a5b0e94
hex113ba968

289122664 has 16 divisors (see below), whose sum is σ = 542293920. Its totient is φ = 144510960.

The previous prime is 289122661. The next prime is 289122671. The reversal of 289122664 is 466221982.

289122664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (289122661) 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, 31299 + ... + 39469.

It is an arithmetic number, because the mean of its divisors is an integer number (33893370).

Almost surely, 2289122664 is an apocalyptic number.

It is an amenable number.

289122664 is a deficient number, since it is larger than the sum of its proper divisors (253171256).

289122664 is a wasteful number, since it uses less digits than its factorization.

289122664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600 (or 12596 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 289122664 is about 17003.6073819646. The cubic root of 289122664 is about 661.2424286020.

The spelling of 289122664 in words is "two hundred eighty-nine million, one hundred twenty-two thousand, six hundred sixty-four".

Divisors: 1 2 4 8 4423 8171 8846 16342 17692 32684 35384 65368 36140333 72280666 144561332 289122664