Base | Representation |
---|---|
bin | 11110110110100110100… |
… | …011001110111101111011 |
3 | 21111200122022001122102010 |
4 | 132312212203032331323 |
5 | 234214144030144011 |
6 | 4302002405341003 |
7 | 306115600155024 |
oct | 36664643167573 |
9 | 7450568048363 |
10 | 2120213131131 |
11 | 7481a5047537 |
12 | 2a2ab3107763 |
13 | 124c20952824 |
14 | 74894235c4b |
15 | 3a241a331a6 |
hex | 1eda68cef7b |
2120213131131 has 8 divisors (see below), whose sum is σ = 2828059894800. Its totient is φ = 1412920894112.
The previous prime is 2120213131123. The next prime is 2120213131147. The reversal of 2120213131131 is 1311313120212.
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 2120213131131 - 23 = 2120213131123 is a prime.
It is a super-3 number, since 3×21202131311313 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 2120213131098 and 2120213131107.
It is not an unprimeable number, because it can be changed into a prime (2120213131121) 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, 138622740 + ... + 138638033.
It is an arithmetic number, because the mean of its divisors is an integer number (353507486850).
Almost surely, 22120213131131 is an apocalyptic number.
2120213131131 is a deficient number, since it is larger than the sum of its proper divisors (707846763669).
2120213131131 is a wasteful number, since it uses less digits than its factorization.
2120213131131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 277263325.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 2120213131131 its reverse (1311313120212), we get a palindrome (3431526251343).
The spelling of 2120213131131 in words is "two trillion, one hundred twenty billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred thirty-one".
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