Base | Representation |
---|---|
bin | 101111011101001000… |
… | …0010111110101010110 |
3 | 100202001012221202201212 |
4 | 1132322100113311112 |
5 | 3132202212230120 |
6 | 114452201421422 |
7 | 10235255034200 |
oct | 1367220276526 |
9 | 322035852655 |
10 | 101909101910 |
11 | 3a246038680 |
12 | 1790119a872 |
13 | 97c11ac145 |
14 | 4d0a817770 |
15 | 29b6b446c5 |
hex | 17ba417d56 |
101909101910 has 48 divisors (see below), whose sum is σ = 232783845840. Its totient is φ = 31763874240.
The previous prime is 101909101831. The next prime is 101909101919. The reversal of 101909101910 is 19101909101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101909101919) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9448145 + ... + 9458924.
It is an arithmetic number, because the mean of its divisors is an integer number (4849663455).
Almost surely, 2101909101910 is an apocalyptic number.
101909101910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
101909101910 is an abundant number, since it is smaller than the sum of its proper divisors (130874743930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
101909101910 is a wasteful number, since it uses less digits than its factorization.
101909101910 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18907101 (or 18907094 counting only the distinct ones).
The product of its (nonzero) digits is 729, while the sum is 32.
The spelling of 101909101910 in words is "one hundred one billion, nine hundred nine million, one hundred one thousand, nine hundred ten".
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