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289804692 = 223234324419
BaseRepresentation
bin10001010001100…
…001000110010100
3202012022121022010
4101101201012110
51043142222232
644431304220
710116204432
oct2121410624
9665277263
10289804692
11139650611
128107b070
134806b388
142a6bbd52
151a6980cc
hex11461194

289804692 has 48 divisors (see below), whose sum is σ = 722050560. Its totient is φ = 90248928.

The previous prime is 289804673. The next prime is 289804699. The reversal of 289804692 is 296408982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289804699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342 + ... + 24077.

It is an arithmetic number, because the mean of its divisors is an integer number (15042720).

Almost surely, 2289804692 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 289804692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361025280).

289804692 is an abundant number, since it is smaller than the sum of its proper divisors (432245868).

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

289804692 is a wasteful number, since it uses less digits than its factorization.

289804692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24492 (or 24490 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 289804692 is about 17023.6509597677. The cubic root of 289804692 is about 661.7619678293.

The spelling of 289804692 in words is "two hundred eighty-nine million, eight hundred four thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 23 43 46 69 86 92 129 138 172 258 276 516 989 1978 2967 3956 5934 11868 24419 48838 73257 97676 146514 293028 561637 1050017 1123274 1684911 2100034 2246548 3150051 3369822 4200068 6300102 6739644 12600204 24150391 48300782 72451173 96601564 144902346 289804692