Base | Representation |
---|---|
bin | 110000000000000011… |
… | …1101001101010001101 |
3 | 100212001220111120111201 |
4 | 1200000013221222031 |
5 | 3142102243030444 |
6 | 115204352145501 |
7 | 10306306630243 |
oct | 1400007515215 |
9 | 325056446451 |
10 | 103081220749 |
11 | 3a797730931 |
12 | 17b89838291 |
13 | 9949c90ba0 |
14 | 4dbc36a793 |
15 | 2a349c3dd4 |
hex | 18001e9a8d |
103081220749 has 8 divisors (see below), whose sum is σ = 111015269792. Its totient is φ = 95147846640.
The previous prime is 103081220747. The next prime is 103081220779. The reversal of 103081220749 is 947022180301.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 103081220749 - 21 = 103081220747 is a prime.
It is a super-2 number, since 2×1030812207492 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103081220747) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174322 + ... + 486364.
It is an arithmetic number, because the mean of its divisors is an integer number (13876908724).
Almost surely, 2103081220749 is an apocalyptic number.
It is an amenable number.
103081220749 is a deficient number, since it is larger than the sum of its proper divisors (7934049043).
103081220749 is a wasteful number, since it uses less digits than its factorization.
103081220749 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 337467.
The product of its (nonzero) digits is 24192, while the sum is 37.
The spelling of 103081220749 in words is "one hundred three billion, eighty-one million, two hundred twenty thousand, seven hundred forty-nine".
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