Base | Representation |
---|---|
bin | 100011100100111001… |
… | …011011111011010111 |
3 | 10122121020001001222210 |
4 | 203210321123323113 |
5 | 1111213200001330 |
6 | 25314314324503 |
7 | 2521426434006 |
oct | 434471337327 |
9 | 118536031883 |
10 | 38200000215 |
11 | 152229a4613 |
12 | 74a1129733 |
13 | 37aa192630 |
14 | 1bc54d4c3d |
15 | ed897d8b0 |
hex | 8e4e5bed7 |
38200000215 has 32 divisors (see below), whose sum is σ = 65831302656. Its totient is φ = 18803364480.
The previous prime is 38200000207. The next prime is 38200000217. The reversal of 38200000215 is 51200000283.
38200000215 is a nontrivial binomial coefficient, being equal to C(276406, 2).
It is not a de Polignac number, because 38200000215 - 23 = 38200000207 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 38200000191 and 38200000200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38200000217) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2063832 + ... + 2082258.
It is an arithmetic number, because the mean of its divisors is an integer number (2057228208).
Almost surely, 238200000215 is an apocalyptic number.
38200000215 is the 276405-th triangular number and also the 138203-rd hexagonal number.
38200000215 is a deficient number, since it is larger than the sum of its proper divisors (27631302441).
38200000215 is a wasteful number, since it uses less digits than its factorization.
38200000215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29079.
The product of its (nonzero) digits is 480, while the sum is 21.
Adding to 38200000215 its reverse (51200000283), we get a palindrome (89400000498).
The spelling of 38200000215 in words is "thirty-eight billion, two hundred million, two hundred fifteen", and thus it is an aban number.
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