Base | Representation |
---|---|
bin | 11110111010011010110… |
… | …101110110010011000001 |
3 | 21112002012221011001102121 |
4 | 132322122311312103001 |
5 | 234301042240322041 |
6 | 4303521215044241 |
7 | 306322265052043 |
oct | 36723265662301 |
9 | 7462187131377 |
10 | 2124311651521 |
11 | 749a08601574 |
12 | 2a3857810681 |
13 | 125424aba417 |
14 | 74b626b3a93 |
15 | 3a3d17697d1 |
hex | 1ee9ad764c1 |
2124311651521 has 16 divisors (see below), whose sum is σ = 2301665186304. Its totient is φ = 1952783126784.
The previous prime is 2124311651509. The next prime is 2124311651531. The reversal of 2124311651521 is 1251561134212.
It is a de Polignac number, because none of the positive numbers 2k-2124311651521 is a prime.
It is a super-2 number, since 2×21243116515212 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2124311651531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39013311 + ... + 39067723.
It is an arithmetic number, because the mean of its divisors is an integer number (143854074144).
Almost surely, 22124311651521 is an apocalyptic number.
It is an amenable number.
2124311651521 is a deficient number, since it is larger than the sum of its proper divisors (177353534783).
2124311651521 is a wasteful number, since it uses less digits than its factorization.
2124311651521 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 107880.
The product of its digits is 14400, while the sum is 34.
Adding to 2124311651521 its reverse (1251561134212), we get a palindrome (3375872785733).
The spelling of 2124311651521 in words is "two trillion, one hundred twenty-four billion, three hundred eleven million, six hundred fifty-one thousand, five hundred twenty-one".
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