Base | Representation |
---|---|
bin | 10010111010000000… |
… | …000000001101010111 |
3 | 1221101202211210202211 |
4 | 102322000000031113 |
5 | 313033402312330 |
6 | 13154220414251 |
7 | 1316030553400 |
oct | 227200001527 |
9 | 57352753684 |
10 | 20300432215 |
11 | 8678079208 |
12 | 3b266a7387 |
13 | 1bb69c738b |
14 | da816c9a7 |
15 | 7dc312d2a |
hex | 4ba000357 |
20300432215 has 12 divisors (see below), whose sum is σ = 28337746536. Its totient is φ = 13920296208.
The previous prime is 20300432197. The next prime is 20300432237. The reversal of 20300432215 is 51223400302.
It is not a de Polignac number, because 20300432215 - 29 = 20300431703 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41429209 + ... + 41429698.
It is an arithmetic number, because the mean of its divisors is an integer number (2361478878).
Almost surely, 220300432215 is an apocalyptic number.
20300432215 is a deficient number, since it is larger than the sum of its proper divisors (8037314321).
20300432215 is an equidigital number, since it uses as much as digits as its factorization.
20300432215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82858926 (or 82858919 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 22.
Adding to 20300432215 its reverse (51223400302), we get a palindrome (71523832517).
The spelling of 20300432215 in words is "twenty billion, three hundred million, four hundred thirty-two thousand, two hundred fifteen".
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