Base | Representation |
---|---|
bin | 1100101101100110100010… |
… | …00101111011110000000101 |
3 | 10122222111010211100210102220 |
4 | 12112303101011323300011 |
5 | 12131004124204442343 |
6 | 135242230533322553 |
7 | 5613456543115503 |
oct | 626632105736005 |
9 | 118874124323386 |
10 | 27955155155973 |
11 | 89a8795329201 |
12 | 3175a90a96459 |
13 | 127a21017c716 |
14 | 6c9072ad9673 |
15 | 33729ed0a183 |
hex | 196cd117bc05 |
27955155155973 has 8 divisors (see below), whose sum is σ = 37357679126688. Its totient is φ = 18594700644624.
The previous prime is 27955155155971. The next prime is 27955155155981. The reversal of 27955155155973 is 37955155155972.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 27955155155973 - 21 = 27955155155971 is a prime.
It is a super-4 number, since 4×279551551559734 (a number of 55 digits) contains 4444 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 27955155155898 and 27955155155907.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27955155155971) 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, 10517363290 + ... + 10517365947.
It is an arithmetic number, because the mean of its divisors is an integer number (4669709890836).
Almost surely, 227955155155973 is an apocalyptic number.
It is an amenable number.
27955155155973 is a deficient number, since it is larger than the sum of its proper divisors (9402523970715).
27955155155973 is a wasteful number, since it uses less digits than its factorization.
27955155155973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21034729683.
The product of its digits is 372093750, while the sum is 69.
Subtracting 27955155155973 from its reverse (37955155155972), we obtain a palindrome (9999999999999).
The spelling of 27955155155973 in words is "twenty-seven trillion, nine hundred fifty-five billion, one hundred fifty-five million, one hundred fifty-five thousand, nine hundred seventy-three".
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