Base | Representation |
---|---|
bin | 11000100011111110… |
… | …00111101001111110 |
3 | 1021001000000210012111 |
4 | 30101333013221332 |
5 | 204001241122430 |
6 | 10020255524234 |
7 | 644530524526 |
oct | 142177075176 |
9 | 37030023174 |
10 | 13186660990 |
11 | 5657587638 |
12 | 268022967a |
13 | 1321c686a9 |
14 | 8d1478686 |
15 | 522a23c2a |
hex | 311fc7a7e |
13186660990 has 8 divisors (see below), whose sum is σ = 23735989800. Its totient is φ = 5274664392.
The previous prime is 13186660979. The next prime is 13186660999. The reversal of 13186660990 is 9906668131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13186660999) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659333040 + ... + 659333059.
It is an arithmetic number, because the mean of its divisors is an integer number (2966998725).
Almost surely, 213186660990 is an apocalyptic number.
13186660990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13186660990 is a deficient number, since it is larger than the sum of its proper divisors (10549328810).
13186660990 is a wasteful number, since it uses less digits than its factorization.
13186660990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1318666106.
The product of its (nonzero) digits is 419904, while the sum is 49.
The spelling of 13186660990 in words is "thirteen billion, one hundred eighty-six million, six hundred sixty thousand, nine hundred ninety".
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