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120806321326 = 260403160663
BaseRepresentation
bin111000010000010011…
…1100010110010101110
3102112211012101222102021
41300200213202302232
53434402404240301
6131255254420354
711504456534305
oct1604047426256
9375735358367
10120806321326
1147263023289
121b4b59616ba
13b513271592
145bc047943c
153220b7a8a1
hex1c209e2cae

120806321326 has 4 divisors (see below), whose sum is σ = 181209481992. Its totient is φ = 60403160662.

The previous prime is 120806321323. The next prime is 120806321357. The reversal of 120806321326 is 623123608021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 623123608021 = 4115198136781.

It is a super-3 number, since 3×1208063213263 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120806321291 and 120806321300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120806321323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30201580330 + ... + 30201580333.

It is an arithmetic number, because the mean of its divisors is an integer number (45302370498).

Almost surely, 2120806321326 is an apocalyptic number.

120806321326 is a deficient number, since it is larger than the sum of its proper divisors (60403160666).

120806321326 is an equidigital number, since it uses as much as digits as its factorization.

120806321326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60403160665.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 120806321326 its reverse (623123608021), we get a palindrome (743929929347).

The spelling of 120806321326 in words is "one hundred twenty billion, eight hundred six million, three hundred twenty-one thousand, three hundred twenty-six".

Divisors: 1 2 60403160663 120806321326