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289022964 = 22324085247
BaseRepresentation
bin10001001110100…
…010001111110100
3202010211212222020
4101032202033310
51042442213324
644402433140
710106440356
oct2116421764
9663755866
10289022964
1113916725a
12809627b0
1347b56609
142a5570d6
151a591679
hex113a23f4

289022964 has 12 divisors (see below), whose sum is σ = 674386944. Its totient is φ = 96340984.

The previous prime is 289022963. The next prime is 289022999. The reversal of 289022964 is 469220982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289022963) 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, 12042612 + ... + 12042635.

It is an arithmetic number, because the mean of its divisors is an integer number (56198912).

Almost surely, 2289022964 is an apocalyptic number.

It is an amenable number.

289022964 is an abundant number, since it is smaller than the sum of its proper divisors (385363980).

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

289022964 is a wasteful number, since it uses less digits than its factorization.

289022964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24085254 (or 24085252 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 289022964 is about 17000.6753983481. The cubic root of 289022964 is about 661.1664130583.

The spelling of 289022964 in words is "two hundred eighty-nine million, twenty-two thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 12 24085247 48170494 72255741 96340988 144511482 289022964