Base | Representation |
---|---|
bin | 101001010010010… |
… | …0110000010010000 |
3 | 10120112201210012210 |
4 | 1102210212002100 |
5 | 10314120342223 |
6 | 345244152120 |
7 | 46221031326 |
oct | 12244460220 |
9 | 3515653183 |
10 | 1385324688 |
11 | 650a85a40 |
12 | 327b38640 |
13 | 191010b67 |
14 | d1db1d16 |
15 | 81946893 |
hex | 52926090 |
1385324688 has 40 divisors (see below), whose sum is σ = 3904098336. Its totient is φ = 419795200.
The previous prime is 1385324663. The next prime is 1385324711. The reversal of 1385324688 is 8864235831.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311333 + ... + 1312388.
Almost surely, 21385324688 is an apocalyptic number.
It is an amenable number.
1385324688 is an abundant number, since it is smaller than the sum of its proper divisors (2518773648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1385324688 is a wasteful number, since it uses less digits than its factorization.
1385324688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2623743 (or 2623737 counting only the distinct ones).
The product of its digits is 1105920, while the sum is 48.
The square root of 1385324688 is about 37219.9501343030. The cubic root of 1385324688 is about 1114.7663684987.
The spelling of 1385324688 in words is "one billion, three hundred eighty-five million, three hundred twenty-four thousand, six hundred eighty-eight".
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