Base | Representation |
---|---|
bin | 101001010101101… |
… | …1101011001100111 |
3 | 10120200010012212002 |
4 | 1102223131121213 |
5 | 10320100434302 |
6 | 345350515515 |
7 | 46242235151 |
oct | 12253353147 |
9 | 3520105762 |
10 | 1387124327 |
11 | 651aa5046 |
12 | 328665b9b |
13 | 1914c1034 |
14 | d231dad1 |
15 | 81b9ec02 |
hex | 52add667 |
1387124327 has 2 divisors, whose sum is σ = 1387124328. Its totient is φ = 1387124326.
The previous prime is 1387124311. The next prime is 1387124371. The reversal of 1387124327 is 7234217831.
It is a weak prime.
It is an emirp because it is prime and its reverse (7234217831) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1387124327 - 24 = 1387124311 is a prime.
It is a super-2 number, since 2×13871243272 = 3848227797110405858, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1387126327) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693562163 + 693562164.
It is an arithmetic number, because the mean of its divisors is an integer number (693562164).
Almost surely, 21387124327 is an apocalyptic number.
1387124327 is a deficient number, since it is larger than the sum of its proper divisors (1).
1387124327 is an equidigital number, since it uses as much as digits as its factorization.
1387124327 is an evil number, because the sum of its binary digits is even.
The product of its digits is 56448, while the sum is 38.
The square root of 1387124327 is about 37244.1180188228. The cubic root of 1387124327 is about 1115.2488808783.
The spelling of 1387124327 in words is "one billion, three hundred eighty-seven million, one hundred twenty-four thousand, three hundred twenty-seven".
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