Base | Representation |
---|---|
bin | 100100100111111010000 |
3 | 2020222012102 |
4 | 10210333100 |
5 | 301400310 |
6 | 41415532 |
7 | 13125530 |
oct | 4447720 |
9 | 2228172 |
10 | 1200080 |
11 | 74a702 |
12 | 49a5a8 |
13 | 33030b |
14 | 2334c0 |
15 | 18a8a5 |
hex | 124fd0 |
1200080 has 40 divisors (see below), whose sum is σ = 3190272. Its totient is φ = 411264.
The previous prime is 1200077. The next prime is 1200083. The reversal of 1200080 is 800021.
It is an interprime number because it is at equal distance from previous prime (1200077) and next prime (1200083).
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1200083) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 1631.
21200080 is an apocalyptic number.
1200080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1200080 is an abundant number, since it is smaller than the sum of its proper divisors (1990192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1200080 is a wasteful number, since it uses less digits than its factorization.
1200080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2163 (or 2157 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 1200080 is about 1095.4816292389. The cubic root of 1200080 is about 106.2682183293.
The spelling of 1200080 in words is "one million, two hundred thousand, eighty".
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