Base | Representation |
---|---|
bin | 11100010010101011111… |
… | …11011001000101010111 |
3 | 10102221011200121100011021 |
4 | 32021111333121011113 |
5 | 111411332423240241 |
6 | 2022325022022011 |
7 | 130142450426056 |
oct | 16112577310527 |
9 | 3387150540137 |
10 | 972105290071 |
11 | 3452a4103513 |
12 | 138498117907 |
13 | 70891124416 |
14 | 3509b86439d |
15 | 1a44789c0d1 |
hex | e255fd9157 |
972105290071 has 2 divisors, whose sum is σ = 972105290072. Its totient is φ = 972105290070.
The previous prime is 972105290033. The next prime is 972105290141. The reversal of 972105290071 is 170092501279.
It is a weak prime.
It is an emirp because it is prime and its reverse (170092501279) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 972105290071 - 29 = 972105289559 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (972105290021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486052645035 + 486052645036.
It is an arithmetic number, because the mean of its divisors is an integer number (486052645036).
Almost surely, 2972105290071 is an apocalyptic number.
972105290071 is a deficient number, since it is larger than the sum of its proper divisors (1).
972105290071 is an equidigital number, since it uses as much as digits as its factorization.
972105290071 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 79380, while the sum is 43.
The spelling of 972105290071 in words is "nine hundred seventy-two billion, one hundred five million, two hundred ninety thousand, seventy-one".
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