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20120030110200 = 23352397739114299
BaseRepresentation
bin1001001001100100011110…
…01111110110000111111000
32122020110022111021212120210
410210302033033312013320
510114121310202011300
6110443003023551120
74144424050102056
oct444621717660770
978213274255523
1020120030110200
116457947518419
12230b49145b4a0
13b2c4067b1297
144d7b595a11d6
1524d57c7d8050
hex124c8f3f61f8

20120030110200 has 192 divisors, whose sum is σ = 62614362960000. Its totient is φ = 5344537904640.

The previous prime is 20120030110189. The next prime is 20120030110237. The reversal of 20120030110200 is 201103002102.

It is a super-2 number, since 2×201200301102002 (a number of 27 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 175972651 + ... + 176086949.

It is an arithmetic number, because the mean of its divisors is an integer number (326116473750).

Almost surely, 220120030110200 is an apocalyptic number.

20120030110200 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 20120030110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31307181480000).

20120030110200 is an abundant number, since it is smaller than the sum of its proper divisors (42494332849800).

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

20120030110200 is a wasteful number, since it uses less digits than its factorization.

20120030110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115454 (or 115445 counting only the distinct ones).

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

Adding to 20120030110200 its reverse (201103002102), we get a palindrome (20321133112302).

The spelling of 20120030110200 in words is "twenty trillion, one hundred twenty billion, thirty million, one hundred ten thousand, two hundred".