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23021302320 = 24325371396217
BaseRepresentation
bin10101011100001011…
…010011001000110000
32012102101122022212200
4111130023103020300
5334121423133240
614324214223200
71443326561322
oct253413231060
965371568780
1023021302320
119843a1a195
124565954b00
13222b60a2a3
141185675612
158eb11b930
hex55c2d3230

23021302320 has 240 divisors, whose sum is σ = 79986859680. Its totient is φ = 5929168896.

The previous prime is 23021302313. The next prime is 23021302327. The reversal of 23021302320 is 2320312032.

It is a happy number.

23021302320 is a `hidden beast` number, since 2 + 302 + 130 + 232 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (23021302313) and next prime (23021302327).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23021302293 and 23021302302.

It is not an unprimeable number, because it can be changed into a prime (23021302327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3699852 + ... + 3706068.

It is an arithmetic number, because the mean of its divisors is an integer number (333278582).

Almost surely, 223021302320 is an apocalyptic number.

23021302320 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 23021302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39993429840).

23021302320 is an abundant number, since it is smaller than the sum of its proper divisors (56965557360).

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

23021302320 is a wasteful number, since it uses less digits than its factorization.

23021302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6403 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23021302320 its reverse (2320312032), we get a palindrome (25341614352).

The spelling of 23021302320 in words is "twenty-three billion, twenty-one million, three hundred two thousand, three hundred twenty".