Base | Representation |
---|---|
bin | 111110001110001111001 |
3 | 10211120212000 |
4 | 13301301321 |
5 | 1010221110 |
6 | 111411213 |
7 | 23221221 |
oct | 7616171 |
9 | 3746760 |
10 | 2038905 |
11 | 1172950 |
12 | 823b09 |
13 | 56506b |
14 | 3b1081 |
15 | 2a41c0 |
hex | 1f1c79 |
2038905 has 32 divisors (see below), whose sum is σ = 3957120. Its totient is φ = 987840.
The previous prime is 2038879. The next prime is 2038919. The reversal of 2038905 is 5098302.
It is not a de Polignac number, because 2038905 - 210 = 2037881 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
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 31 ways as a sum of consecutive naturals, for example, 799 + ... + 2171.
It is an arithmetic number, because the mean of its divisors is an integer number (123660).
22038905 is an apocalyptic number.
It is an amenable number.
2038905 is a deficient number, since it is larger than the sum of its proper divisors (1918215).
2038905 is a wasteful number, since it uses less digits than its factorization.
2038905 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1398 (or 1392 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 2038905 is about 1427.9023075827. The cubic root of 2038905 is about 126.8038180476.
The spelling of 2038905 in words is "two million, thirty-eight thousand, nine hundred five".
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