Base | Representation |
---|---|
bin | 100101100010100110… |
… | …0000000011001101001 |
3 | 21201002101100222021212 |
4 | 1023011030000121221 |
5 | 2310101110421444 |
6 | 101011340242505 |
7 | 5552531614334 |
oct | 1130514003151 |
9 | 251071328255 |
10 | 80617670249 |
11 | 3120a633966 |
12 | 1375a840435 |
13 | 77aa0a957c |
14 | 3c8ac0161b |
15 | 216c82c19e |
hex | 12c5300669 |
80617670249 has 8 divisors (see below), whose sum is σ = 85585116960. Its totient is φ = 75675249216.
The previous prime is 80617670239. The next prime is 80617670321. The reversal of 80617670249 is 94207671608.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80617670249 - 236 = 11898193513 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80617670197 and 80617670206.
It is not an unprimeable number, because it can be changed into a prime (80617670219) 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, 6249779 + ... + 6262664.
It is an arithmetic number, because the mean of its divisors is an integer number (10698139620).
Almost surely, 280617670249 is an apocalyptic number.
It is an amenable number.
80617670249 is a deficient number, since it is larger than the sum of its proper divisors (4967446711).
80617670249 is a wasteful number, since it uses less digits than its factorization.
80617670249 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12512839.
The product of its (nonzero) digits is 1016064, while the sum is 50.
The spelling of 80617670249 in words is "eighty billion, six hundred seventeen million, six hundred seventy thousand, two hundred forty-nine".
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