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20120304442331 = 107344954520217
BaseRepresentation
bin1001001001100100111111…
…00110010101101111011011
32122020111000121111101112002
410210302133212111233123
510114122340414123311
6110443050143511215
74144433620635152
oct444623746255733
978214017441462
1020120304442331
116457a78360195
12230b5492b850b
13b2c44b592ba2
144d7b83bb2599
1524d59692693b
hex124c9f995bdb

20120304442331 has 8 divisors (see below), whose sum is σ = 20314233226800. Its totient is φ = 19926484705408.

The previous prime is 20120304442297. The next prime is 20120304442333. The reversal of 20120304442331 is 13324440302102.

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 20120304442331 - 226 = 20120237333467 is a prime.

It is a super-2 number, since 2×201203044423312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120304442294 and 20120304442303.

It is not an unprimeable number, because it can be changed into a prime (20120304442333) 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, 26891066 + ... + 27629151.

It is an arithmetic number, because the mean of its divisors is an integer number (2539279153350).

Almost surely, 220120304442331 is an apocalyptic number.

20120304442331 is a deficient number, since it is larger than the sum of its proper divisors (193928784469).

20120304442331 is a wasteful number, since it uses less digits than its factorization.

20120304442331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54523773.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20120304442331 its reverse (13324440302102), we get a palindrome (33444744744433).

The spelling of 20120304442331 in words is "twenty trillion, one hundred twenty billion, three hundred four million, four hundred forty-two thousand, three hundred thirty-one".

Divisors: 1 107 3449 369043 54520217 5833663219 188040228433 20120304442331