Base | Representation |
---|---|
bin | 1001010110000… |
… | …01100010001101 |
3 | 12110111111012212 |
4 | 10223001202031 |
5 | 130031343331 |
6 | 11440040205 |
7 | 1641165344 |
oct | 453014215 |
9 | 173444185 |
10 | 78387341 |
11 | 4027a62a |
12 | 22303065 |
13 | 13317356 |
14 | a5a6b5b |
15 | 6d35d2b |
hex | 4ac188d |
78387341 has 8 divisors (see below), whose sum is σ = 79863840. Its totient is φ = 76915888.
The previous prime is 78387317. The next prime is 78387347. The reversal of 78387341 is 14378387.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 78387341 - 26 = 78387277 is a prime.
It is a super-2 number, since 2×783873412 = 12289150458100562, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78387347) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46190 + ... + 47856.
It is an arithmetic number, because the mean of its divisors is an integer number (9982980).
Almost surely, 278387341 is an apocalyptic number.
It is an amenable number.
78387341 is a deficient number, since it is larger than the sum of its proper divisors (1476499).
78387341 is a wasteful number, since it uses less digits than its factorization.
78387341 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2523.
The product of its digits is 112896, while the sum is 41.
The square root of 78387341 is about 8853.6625754543. The cubic root of 78387341 is about 427.9719553202.
The spelling of 78387341 in words is "seventy-eight million, three hundred eighty-seven thousand, three hundred forty-one".
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