Base | Representation |
---|---|
bin | 101001001000001… |
… | …1011010110111000 |
3 | 10120011210012100012 |
4 | 1102100123112320 |
5 | 10311242204242 |
6 | 344535001052 |
7 | 46125062420 |
oct | 12220332670 |
9 | 3504705305 |
10 | 1380038072 |
11 | 648aa5036 |
12 | 326209188 |
13 | 18cbac79a |
14 | d13d7480 |
15 | 81250282 |
hex | 5241b5b8 |
1380038072 has 16 divisors (see below), whose sum is σ = 2957224560. Its totient is φ = 591444864.
The previous prime is 1380038071. The next prime is 1380038081. The reversal of 1380038072 is 2708300831.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1380038071) 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, 12321713 + ... + 12321824.
It is an arithmetic number, because the mean of its divisors is an integer number (184826535).
Almost surely, 21380038072 is an apocalyptic number.
It is an amenable number.
1380038072 is an abundant number, since it is smaller than the sum of its proper divisors (1577186488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380038072 is a wasteful number, since it uses less digits than its factorization.
1380038072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24643550 (or 24643546 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 32.
The square root of 1380038072 is about 37148.8636703736. The cubic root of 1380038072 is about 1113.3465198178.
The spelling of 1380038072 in words is "one billion, three hundred eighty million, thirty-eight thousand, seventy-two".
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