Base | Representation |
---|---|
bin | 100100011100110010… |
… | …1000001101111000001 |
3 | 21111001011000021201022 |
4 | 1020321211001233001 |
5 | 2240302001402243 |
6 | 55543105515225 |
7 | 5440511040605 |
oct | 1107145015701 |
9 | 244034007638 |
10 | 78275419073 |
11 | 30218484995 |
12 | 13206342b15 |
13 | 74c5a60027 |
14 | 3b07ad5505 |
15 | 2081db1b68 |
hex | 1239941bc1 |
78275419073 has 8 divisors (see below), whose sum is σ = 79075751040. Its totient is φ = 77478160240.
The previous prime is 78275418997. The next prime is 78275419127. The reversal of 78275419073 is 37091457287.
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 78275419073 - 220 = 78274370497 is a prime.
It is a super-3 number, since 3×782754190733 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (78275415073) 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, 717065 + ... + 818982.
It is an arithmetic number, because the mean of its divisors is an integer number (9884468880).
Almost surely, 278275419073 is an apocalyptic number.
It is an amenable number.
78275419073 is a deficient number, since it is larger than the sum of its proper divisors (800331967).
78275419073 is a wasteful number, since it uses less digits than its factorization.
78275419073 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1536567.
The product of its (nonzero) digits is 2963520, while the sum is 53.
The spelling of 78275419073 in words is "seventy-eight billion, two hundred seventy-five million, four hundred nineteen thousand, seventy-three".
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