Base | Representation |
---|---|
bin | 100111110100… |
… | …100010000001 |
3 | 201122100022200 |
4 | 213310202001 |
5 | 10133020120 |
6 | 1011423413 |
7 | 154504530 |
oct | 47644201 |
9 | 21570280 |
10 | 10438785 |
11 | 598a8a5 |
12 | 35b4b69 |
13 | 22164c6 |
14 | 155a317 |
15 | db2e90 |
hex | 9f4881 |
10438785 has 48 divisors (see below), whose sum is σ = 21365760. Its totient is φ = 4613760.
The previous prime is 10438783. The next prime is 10438789. The reversal of 10438785 is 58783401.
It is not a de Polignac number, because 10438785 - 21 = 10438783 is a prime.
It is not an unprimeable number, because it can be changed into a prime (10438783) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9231 + ... + 10299.
It is an arithmetic number, because the mean of its divisors is an integer number (445120).
Almost surely, 210438785 is an apocalyptic number.
10438785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
10438785 is an abundant number, since it is smaller than the sum of its proper divisors (10926975).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10438785 is a wasteful number, since it uses less digits than its factorization.
10438785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1118 (or 1115 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 10438785 is about 3230.9108622802. The cubic root of 10438785 is about 218.5495840566.
The spelling of 10438785 in words is "ten million, four hundred thirty-eight thousand, seven hundred eighty-five".
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