Base | Representation |
---|---|
bin | 101001000110001… |
… | …1101001010011111 |
3 | 10120002211022010002 |
4 | 1102030131022133 |
5 | 10311010400040 |
6 | 344500404515 |
7 | 46113165053 |
oct | 12214351237 |
9 | 3502738102 |
10 | 1378996895 |
11 | 648453861 |
12 | 3259a673b |
13 | 18c9068c3 |
14 | d1205c63 |
15 | 810e6a15 |
hex | 5231d29f |
1378996895 has 8 divisors (see below), whose sum is σ = 1658925360. Its totient is φ = 1100444800.
The previous prime is 1378996891. The next prime is 1378996907. The reversal of 1378996895 is 5986998731.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1378996895 - 22 = 1378996891 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1378996891) 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, 341885 + ... + 345894.
It is an arithmetic number, because the mean of its divisors is an integer number (207365670).
Almost surely, 21378996895 is an apocalyptic number.
1378996895 is a deficient number, since it is larger than the sum of its proper divisors (279928465).
1378996895 is an equidigital number, since it uses as much as digits as its factorization.
1378996895 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 688185.
The product of its digits is 29393280, while the sum is 65.
The square root of 1378996895 is about 37134.8474481854. The cubic root of 1378996895 is about 1113.0664593242.
The spelling of 1378996895 in words is "one billion, three hundred seventy-eight million, nine hundred ninety-six thousand, eight hundred ninety-five".
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