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20130412412221 = 54075903630701
BaseRepresentation
bin1001001001110111110100…
…00101001011110100111101
32122021110010001102110111021
410210323322011023310331
510114304041034142341
6110451441144424141
74145242246155136
oct444737205136475
978243101373437
1020130412412221
11646129500a611
1223114aa478051
13b3039c754667
144d84623dcc8d
1524d9890109d1
hex124efa14bd3d

20130412412221 has 8 divisors (see below), whose sum is σ = 20137578200064. Its totient is φ = 20123247908400.

The previous prime is 20130412412207. The next prime is 20130412412249. The reversal of 20130412412221 is 12221421403102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20130412412221 - 25 = 20130412412189 is a prime.

It is a super-2 number, since 2×201304124122212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130412452221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31602171 + ... + 32232871.

It is an arithmetic number, because the mean of its divisors is an integer number (2517197275008).

Almost surely, 220130412412221 is an apocalyptic number.

It is an amenable number.

20130412412221 is a deficient number, since it is larger than the sum of its proper divisors (7165787843).

20130412412221 is an equidigital number, since it uses as much as digits as its factorization.

20130412412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642011.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20130412412221 its reverse (12221421403102), we get a palindrome (32351833815323).

The spelling of 20130412412221 in words is "twenty trillion, one hundred thirty billion, four hundred twelve million, four hundred twelve thousand, two hundred twenty-one".

Divisors: 1 5407 5903 630701 31917521 3410200307 3723028003 20130412412221