Base | Representation |
---|---|
bin | 111011011001100… |
… | …0101001111010101 |
3 | 12010220101002100110 |
4 | 1312303011033111 |
5 | 13040213233133 |
6 | 525435033233 |
7 | 100251042600 |
oct | 16663051725 |
9 | 5126332313 |
10 | 1993102293 |
11 | 933066286 |
12 | 47759b819 |
13 | 259c00890 |
14 | 14c9c1337 |
15 | b9e9dc63 |
hex | 76cc53d5 |
1993102293 has 48 divisors (see below), whose sum is σ = 3335665536. Its totient is φ = 1049247360.
The previous prime is 1993102289. The next prime is 1993102339. The reversal of 1993102293 is 3922013991.
It is not a de Polignac number, because 1993102293 - 22 = 1993102289 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1993102093) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1877983 + ... + 1879043.
It is an arithmetic number, because the mean of its divisors is an integer number (69493032).
Almost surely, 21993102293 is an apocalyptic number.
1993102293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
1993102293 is a deficient number, since it is larger than the sum of its proper divisors (1342563243).
1993102293 is a wasteful number, since it uses less digits than its factorization.
1993102293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2074 (or 2067 counting only the distinct ones).
The product of its (nonzero) digits is 26244, while the sum is 39.
The square root of 1993102293 is about 44644.1742335996. The cubic root of 1993102293 is about 1258.4709538512.
The spelling of 1993102293 in words is "one billion, nine hundred ninety-three million, one hundred two thousand, two hundred ninety-three".
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