Base | Representation |
---|---|
bin | 100101101101010001… |
… | …0100010000000101001 |
3 | 21202000100102202111010 |
4 | 1023122202202000221 |
5 | 2311314312142432 |
6 | 101111054254133 |
7 | 5564441523150 |
oct | 1133242420051 |
9 | 252010382433 |
10 | 80975896617 |
11 | 31383867710 |
12 | 1383a7b7349 |
13 | 7836382c35 |
14 | 3cc2610597 |
15 | 218dedd3cc |
hex | 12da8a2029 |
80975896617 has 32 divisors (see below), whose sum is σ = 134623964160. Its totient is φ = 42060813120.
The previous prime is 80975896543. The next prime is 80975896627. The reversal of 80975896617 is 71669857908.
It is not a de Polignac number, because 80975896617 - 27 = 80975896489 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80975896627) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3513343 + ... + 3536315.
It is an arithmetic number, because the mean of its divisors is an integer number (4206998880).
Almost surely, 280975896617 is an apocalyptic number.
It is an amenable number.
80975896617 is a deficient number, since it is larger than the sum of its proper divisors (53648067543).
80975896617 is a wasteful number, since it uses less digits than its factorization.
80975896617 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38253.
The product of its (nonzero) digits is 45722880, while the sum is 66.
The spelling of 80975896617 in words is "eighty billion, nine hundred seventy-five million, eight hundred ninety-six thousand, six hundred seventeen".
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