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13023212011320 = 23357115119876779
BaseRepresentation
bin1011110110000011001111…
…1011001111111100111000
31201010000012000222212201110
42331200303323033330320
53201333014233330240
643410440410320320
72512616222422650
oct275406373177470
951100160885643
1013023212011320
114171127736425
121563b9b4290a0
13736111948a64
14330480b41360
15178b6c3c4c80
hexbd833ecff38

13023212011320 has 256 divisors, whose sum is σ = 44718892646400. Its totient is φ = 2972212646400.

The previous prime is 13023212011297. The next prime is 13023212011331. The reversal of 13023212011320 is 2311021232031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1921107691 + ... + 1921114469.

It is an arithmetic number, because the mean of its divisors is an integer number (174683174400).

Almost surely, 213023212011320 is an apocalyptic number.

13023212011320 is a gapful number since it is divisible by the number (10) 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 13023212011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22359446323200).

13023212011320 is an abundant number, since it is smaller than the sum of its proper divisors (31695680635080).

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

13023212011320 is a wasteful number, since it uses less digits than its factorization.

13023212011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938 (or 9934 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13023212011320 its reverse (2311021232031), we get a palindrome (15334233243351).

The spelling of 13023212011320 in words is "thirteen trillion, twenty-three billion, two hundred twelve million, eleven thousand, three hundred twenty".