Base | Representation |
---|---|
bin | 10010111111100010… |
… | …001010011001010111 |
3 | 1221122020112121021102 |
4 | 102333202022121113 |
5 | 313231134213134 |
6 | 13211334340315 |
7 | 1321235650115 |
oct | 227742123127 |
9 | 57566477242 |
10 | 20393272919 |
11 | 871551a868 |
12 | 3b517ba69b |
13 | 1c000022c6 |
14 | db6618ab5 |
15 | 7e555137e |
hex | 4bf88a657 |
20393272919 has 8 divisors (see below), whose sum is σ = 20885760000. Its totient is φ = 19906546176.
The previous prime is 20393272901. The next prime is 20393272957. The reversal of 20393272919 is 91927239302.
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 20393272919 - 28 = 20393272663 is a prime.
It is a super-2 number, since 2×203932729192 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20393272019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432919 + ... + 1447080.
It is an arithmetic number, because the mean of its divisors is an integer number (2610720000).
Almost surely, 220393272919 is an apocalyptic number.
20393272919 is a deficient number, since it is larger than the sum of its proper divisors (492487081).
20393272919 is an equidigital number, since it uses as much as digits as its factorization.
20393272919 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2880169.
The product of its (nonzero) digits is 367416, while the sum is 47.
The spelling of 20393272919 in words is "twenty billion, three hundred ninety-three million, two hundred seventy-two thousand, nine hundred nineteen".
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