Base | Representation |
---|---|
bin | 10010000000001010… |
… | …001001011100111001 |
3 | 1211220010211101211212 |
4 | 102000022021130321 |
5 | 304041440403420 |
6 | 12514033132505 |
7 | 1253005253663 |
oct | 220012113471 |
9 | 54803741755 |
10 | 19330012985 |
11 | 821a319948 |
12 | 38b56ba135 |
13 | 1a9094640a |
14 | d15321533 |
15 | 7820263c5 |
hex | 480289739 |
19330012985 has 8 divisors (see below), whose sum is σ = 23232780096. Its totient is φ = 15439500720.
The previous prime is 19330012969. The next prime is 19330013051. The reversal of 19330012985 is 58921003391.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 19330012985 - 24 = 19330012969 is a prime.
It is a super-2 number, since 2×193300129852 (a number of 21 digits) contains 22 as substring.
It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 3060239 + ... + 3066548.
It is an arithmetic number, because the mean of its divisors is an integer number (2904097512).
Almost surely, 219330012985 is an apocalyptic number.
It is an amenable number.
19330012985 is a deficient number, since it is larger than the sum of its proper divisors (3902767111).
19330012985 is an equidigital number, since it uses as much as digits as its factorization.
19330012985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6127423.
The product of its (nonzero) digits is 58320, while the sum is 41.
The spelling of 19330012985 in words is "nineteen billion, three hundred thirty million, twelve thousand, nine hundred eighty-five".
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