Base | Representation |
---|---|
bin | 10010110100001001… |
… | …110110101001101101 |
3 | 1221010221021202221010 |
4 | 102310021312221231 |
5 | 312333300214323 |
6 | 13140354255433 |
7 | 1313430103062 |
oct | 226411665155 |
9 | 57127252833 |
10 | 20202351213 |
11 | 8627778530 |
12 | 3ab9887579 |
13 | 1b9c5a6195 |
14 | d9911ac69 |
15 | 7d38dbc93 |
hex | 4b4276a6d |
20202351213 has 8 divisors (see below), whose sum is σ = 29385238176. Its totient is φ = 12243849200.
The previous prime is 20202351199. The next prime is 20202351223. The reversal of 20202351213 is 31215320202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20202351213 - 25 = 20202351181 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20202351213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20202351223) 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, 306096198 + ... + 306096263.
It is an arithmetic number, because the mean of its divisors is an integer number (3673154772).
Almost surely, 220202351213 is an apocalyptic number.
It is an amenable number.
20202351213 is a deficient number, since it is larger than the sum of its proper divisors (9182886963).
20202351213 is a wasteful number, since it uses less digits than its factorization.
20202351213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 612192475.
The product of its (nonzero) digits is 720, while the sum is 21.
Adding to 20202351213 its reverse (31215320202), we get a palindrome (51417671415).
The spelling of 20202351213 in words is "twenty billion, two hundred two million, three hundred fifty-one thousand, two hundred thirteen".
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