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23202302320 = 245290028779
BaseRepresentation
bin10101100110111101…
…110000100101110000
32012220000020002012101
4111212331300211300
5340004242133240
614354201510144
71450655213161
oct254675604560
965800202171
1023202302320
11992710516a
1245b64a2354
132259c71392
1411a170d768
1590be7139a
hex566f70970

23202302320 has 20 divisors (see below), whose sum is σ = 53945353080. Its totient is φ = 9280920896.

The previous prime is 23202302293. The next prime is 23202302341. The reversal of 23202302320 is 2320320232.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145014310 + ... + 145014469.

It is an arithmetic number, because the mean of its divisors is an integer number (2697267654).

Almost surely, 223202302320 is an apocalyptic number.

23202302320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23202302320 is an abundant number, since it is smaller than the sum of its proper divisors (30743050760).

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

23202302320 is a wasteful number, since it uses less digits than its factorization.

23202302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290028792 (or 290028786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 23202302320 its reverse (2320320232), we get a palindrome (25522622552).

The spelling of 23202302320 in words is "twenty-three billion, two hundred two million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 290028779 580057558 1160115116 1450143895 2320230232 2900287790 4640460464 5800575580 11601151160 23202302320