Base | Representation |
---|---|
bin | 100101100011111010001 |
3 | 2022112100020 |
4 | 10230133101 |
5 | 303341201 |
6 | 42214053 |
7 | 13314225 |
oct | 4543721 |
9 | 2275306 |
10 | 1230801 |
11 | 7707a0 |
12 | 4b4329 |
13 | 3412b0 |
14 | 240785 |
15 | 194a36 |
hex | 12c7d1 |
1230801 has 32 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 648000.
The previous prime is 1230791. The next prime is 1230829. The reversal of 1230801 is 1080321.
It is a happy number.
It is not a de Polignac number, because 1230801 - 25 = 1230769 is a prime.
It is a super-2 number, since 2×12308012 = 3029742203202, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1230871) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8076 + ... + 8226.
It is an arithmetic number, because the mean of its divisors is an integer number (63840).
21230801 is an apocalyptic number.
1230801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1230801 is the 906-th pentagonal number.
It is an amenable number.
1230801 is a deficient number, since it is larger than the sum of its proper divisors (812079).
1230801 is a wasteful number, since it uses less digits than its factorization.
1230801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 197.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 1230801 is about 1109.4147105569. The cubic root of 1230801 is about 107.1673800376.
The spelling of 1230801 in words is "one million, two hundred thirty thousand, eight hundred one".
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