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23310220120000 = 265411281188533
BaseRepresentation
bin1010100110011010101010…
…11000111100111111000000
310001112102202022121200211221
411103031111120330333000
511023403312322320000
6121324322311244424
74624051661546512
oct523152530747700
9101472668550757
1023310220120000
11747789961a480
122745815679714
1310011b510cc08
145a8313757bb2
152a654412761a
hex15335563cfc0

23310220120000 has 280 divisors, whose sum is σ = 63281212367472. Its totient is φ = 8446233600000.

The previous prime is 23310220119983. The next prime is 23310220120007. The reversal of 23310220120000 is 2102201332.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23310220120007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123545734 + ... + 123734266.

Almost surely, 223310220120000 is an apocalyptic number.

23310220120000 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 23310220120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31640606183736).

23310220120000 is an abundant number, since it is smaller than the sum of its proper divisors (39970992247472).

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

23310220120000 is a wasteful number, since it uses less digits than its factorization.

23310220120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188857 (or 188832 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23310220120000 its reverse (2102201332), we get a palindrome (23312322321332).

The spelling of 23310220120000 in words is "twenty-three trillion, three hundred ten billion, two hundred twenty million, one hundred twenty thousand".