Base | Representation |
---|---|
bin | 101010101111000000000 |
3 | 2122010212201 |
4 | 11111320000 |
5 | 324302240 |
6 | 50002544 |
7 | 14621365 |
oct | 5257000 |
9 | 2563781 |
10 | 1400320 |
11 | 877099 |
12 | 576454 |
13 | 3a04bc |
14 | 28646c |
15 | 1c9d9a |
hex | 155e00 |
1400320 has 40 divisors (see below), whose sum is σ = 3363624. Its totient is φ = 559104.
The previous prime is 1400303. The next prime is 1400327. The reversal of 1400320 is 230041.
It is a tau number, because it is divible by the number of its divisors (40).
It is a super-2 number, since 2×14003202 = 3921792204800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 1400297 and 1400306.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1400327) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2287 + ... + 2833.
21400320 is an apocalyptic number.
1400320 is a gapful number since it is divisible by the number (10) 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 1400320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681812).
1400320 is an abundant number, since it is smaller than the sum of its proper divisors (1963304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1400320 is an frugal number, since it uses more digits than its factorization.
1400320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 570 (or 554 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 1400320 is about 1183.3511735744. The cubic root of 1400320 is about 111.8774169031.
Adding to 1400320 its reverse (230041), we get a palindrome (1630361).
The spelling of 1400320 in words is "one million, four hundred thousand, three hundred twenty".
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