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23020111200 = 25352192347467
BaseRepresentation
bin10101011100000110…
…110000010101100000
32012102022101210222010
4111130012300111200
5334121122024300
614324132512520
71443313500552
oct253406602540
965368353863
1023020111200
119843286299
12456547b740
13222b2b1098
1411854454d2
158eae83a50
hex55c1b0560

23020111200 has 576 divisors, whose sum is σ = 84234608640. Its totient is φ = 5432739840.

The previous prime is 23020111151. The next prime is 23020111277. The reversal of 23020111200 is 211102032.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49293367 + ... + 49293833.

It is an arithmetic number, because the mean of its divisors is an integer number (146240640).

Almost surely, 223020111200 is an apocalyptic number.

23020111200 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 23020111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42117304320).

23020111200 is an abundant number, since it is smaller than the sum of its proper divisors (61214497440).

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

23020111200 is a wasteful number, since it uses less digits than its factorization.

23020111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23020111200 its reverse (211102032), we get a palindrome (23231213232).

The spelling of 23020111200 in words is "twenty-three billion, twenty million, one hundred eleven thousand, two hundred".