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20122120300 = 2252201221203
BaseRepresentation
bin10010101111010111…
…110011000001101100
31220221100022121210211
4102233113303001230
5312202230322200
613124410512204
71311434125522
oct225727630154
956840277724
1020122120300
118596459897
123a96a35664
131b88a94979
14d8c5d4312
157cb83eaba
hex4af5f306c

20122120300 has 18 divisors (see below), whose sum is σ = 43665001268. Its totient is φ = 8048848080.

The previous prime is 20122120217. The next prime is 20122120307. The reversal of 20122120300 is 302122102.

It is not an unprimeable number, because it can be changed into a prime (20122120307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100610502 + ... + 100610701.

Almost surely, 220122120300 is an apocalyptic number.

20122120300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122120300 is an abundant number, since it is smaller than the sum of its proper divisors (23542880968).

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

20122120300 is a wasteful number, since it uses less digits than its factorization.

20122120300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201221217 (or 201221210 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20122120300 its reverse (302122102), we get a palindrome (20424242402).

The spelling of 20122120300 in words is "twenty billion, one hundred twenty-two million, one hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 201221203 402442406 804884812 1006106015 2012212030 4024424060 5030530075 10061060150 20122120300