Base | Representation |
---|---|
bin | 1100011001010… |
… | …11111001010001 |
3 | 21020200011211200 |
4 | 12030223321101 |
5 | 203110120232 |
6 | 14152501413 |
7 | 2401614252 |
oct | 614537121 |
9 | 236604750 |
10 | 103988817 |
11 | 53776379 |
12 | 2a9aa869 |
13 | 1870c25a |
14 | db4cb29 |
15 | 91e177c |
hex | 632be51 |
103988817 has 12 divisors (see below), whose sum is σ = 150328464. Its totient is φ = 69269400.
The previous prime is 103988783. The next prime is 103988821. The reversal of 103988817 is 718889301.
It is not a de Polignac number, because 103988817 - 28 = 103988561 is a prime.
It is a super-2 number, since 2×1039888172 = 21627348122118978, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (103988837) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9078 + ... + 17040.
It is an arithmetic number, because the mean of its divisors is an integer number (12527372).
Almost surely, 2103988817 is an apocalyptic number.
It is an amenable number.
103988817 is a deficient number, since it is larger than the sum of its proper divisors (46339647).
103988817 is a wasteful number, since it uses less digits than its factorization.
103988817 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9420 (or 9417 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 45.
The square root of 103988817 is about 10197.4907207607. The cubic root of 103988817 is about 470.2500811862.
The spelling of 103988817 in words is "one hundred three million, nine hundred eighty-eight thousand, eight hundred seventeen".
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