Base | Representation |
---|---|
bin | 100101110010110001100 |
3 | 2022220210010 |
4 | 10232112030 |
5 | 304112122 |
6 | 42313220 |
7 | 13345350 |
oct | 4562614 |
9 | 2286703 |
10 | 1238412 |
11 | 77648a |
12 | 4b8810 |
13 | 3448b6 |
14 | 243460 |
15 | 196e0c |
hex | 12e58c |
1238412 has 48 divisors (see below), whose sum is σ = 3451392. Its totient is φ = 337920.
The previous prime is 1238411. The next prime is 1238423. The reversal of 1238412 is 2148321.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (1238411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1612 + ... + 2252.
It is an arithmetic number, because the mean of its divisors is an integer number (71904).
21238412 is an apocalyptic number.
1238412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1238412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725696).
1238412 is an abundant number, since it is smaller than the sum of its proper divisors (2212980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1238412 is a wasteful number, since it uses less digits than its factorization.
1238412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 678 (or 676 counting only the distinct ones).
The product of its digits is 384, while the sum is 21.
The square root of 1238412 is about 1112.8396110851. The cubic root of 1238412 is about 107.3878260218.
Subtracting 1238412 from its reverse (2148321), we obtain a palindrome (909909).
The spelling of 1238412 in words is "one million, two hundred thirty-eight thousand, four hundred twelve".
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