Base | Representation |
---|---|
bin | 101001001000100… |
… | …1001001100001000 |
3 | 10120012010201212002 |
4 | 1102101021030020 |
5 | 10311314211200 |
6 | 344543010132 |
7 | 46126503632 |
oct | 12221111410 |
9 | 3505121762 |
10 | 1380225800 |
11 | 649113088 |
12 | 326299948 |
13 | 18cc47075 |
14 | d1445a52 |
15 | 8128abd5 |
hex | 52449308 |
1380225800 has 108 divisors (see below), whose sum is σ = 3345205815. Its totient is φ = 529603200.
The previous prime is 1380225793. The next prime is 1380225839. The reversal of 1380225800 is 85220831.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 5 ways, for example, as 1094683396 + 285542404 = 33086^2 + 16898^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=26270.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19439765 + ... + 19439835.
Almost surely, 21380225800 is an apocalyptic number.
1380225800 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 1380225800
1380225800 is an abundant number, since it is smaller than the sum of its proper divisors (1964980015).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380225800 is an equidigital number, since it uses as much as digits as its factorization.
1380225800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232 (or 115 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 29.
The square root of 1380225800 is about 37151.3902835412. The cubic root of 1380225800 is about 1113.3970007534.
The spelling of 1380225800 in words is "one billion, three hundred eighty million, two hundred twenty-five thousand, eight hundred".
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