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20030101213200 = 2435213311072691439
BaseRepresentation
bin1001000110111100111110…
…00100010101000000010000
32121220212012012012120102220
410203132133010111000100
510111133121402310300
6110333411303341040
74135061403064641
oct443363704250020
977825165176386
1020030101213200
116422799a51041
1222b5b74451780
13b23aa46258b0
144d3667cd16c8
1524b067803da0
hex12379f115010

20030101213200 has 960 divisors, whose sum is σ = 72312171724800. Its totient is φ = 4706001100800.

The previous prime is 20030101213153. The next prime is 20030101213219. The reversal of 20030101213200 is 231210103002.

It is a super-2 number, since 2×200301012132002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20030101213200.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13919458081 + ... + 13919459519.

It is an arithmetic number, because the mean of its divisors is an integer number (75325178880).

Almost surely, 220030101213200 is an apocalyptic number.

20030101213200 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 20030101213200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36156085862400).

20030101213200 is an abundant number, since it is smaller than the sum of its proper divisors (52282070511600).

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

20030101213200 is a wasteful number, since it uses less digits than its factorization.

20030101213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20030101213200 its reverse (231210103002), we get a palindrome (20261311316202).

The spelling of 20030101213200 in words is "twenty trillion, thirty billion, one hundred one million, two hundred thirteen thousand, two hundred".