Base | Representation |
---|---|
bin | 1100010000010… |
… | …01111111100100 |
3 | 21011102211222112 |
4 | 12020021333210 |
5 | 202304121010 |
6 | 14111220152 |
7 | 2355540323 |
oct | 610117744 |
9 | 234384875 |
10 | 102801380 |
11 | 53035220 |
12 | 2a517658 |
13 | 183b4926 |
14 | d9200ba |
15 | 9059a05 |
hex | 6209fe4 |
102801380 has 48 divisors (see below), whose sum is σ = 249371136. Its totient is φ = 35182080.
The previous prime is 102801379. The next prime is 102801437. The reversal of 102801380 is 83108201.
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 15 ways as a sum of consecutive naturals, for example, 10004 + ... + 17483.
It is an arithmetic number, because the mean of its divisors is an integer number (5195232).
Almost surely, 2102801380 is an apocalyptic number.
102801380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102801380 is an abundant number, since it is smaller than the sum of its proper divisors (146569756).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102801380 is a wasteful number, since it uses less digits than its factorization.
102801380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27524 (or 27522 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 23.
The square root of 102801380 is about 10139.1015381048. The cubic root of 102801380 is about 468.4533131756.
Adding to 102801380 its reverse (83108201), we get a palindrome (185909581).
The spelling of 102801380 in words is "one hundred two million, eight hundred one thousand, three hundred eighty".
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