Base | Representation |
---|---|
bin | 100101011100101001… |
… | …0010110010110110011 |
3 | 21200120110200000001101 |
4 | 1022321102112112303 |
5 | 2304144002201301 |
6 | 100535444545231 |
7 | 5544555530206 |
oct | 1127122262663 |
9 | 250513600041 |
10 | 80418006451 |
11 | 31117960562 |
12 | 137039b2217 |
13 | 777790c303 |
14 | 3c6c4a993d |
15 | 215a03c701 |
hex | 12b94965b3 |
80418006451 has 18 divisors (see below), whose sum is σ = 82453173180. Its totient is φ = 78428751192.
The previous prime is 80418006443. The next prime is 80418006463. The reversal of 80418006451 is 15460081408.
It is not a de Polignac number, because 80418006451 - 23 = 80418006443 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80418006451.
It is not an unprimeable number, because it can be changed into a prime (80418006401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 224005410 + ... + 224005768.
Almost surely, 280418006451 is an apocalyptic number.
80418006451 is a deficient number, since it is larger than the sum of its proper divisors (2035166729).
80418006451 is an frugal number, since it uses more digits than its factorization.
80418006451 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 991 (or 565 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 37.
Adding to 80418006451 its reverse (15460081408), we get a palindrome (95878087859).
The spelling of 80418006451 in words is "eighty billion, four hundred eighteen million, six thousand, four hundred fifty-one".
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