Base | Representation |
---|---|
bin | 111110101111110111… |
… | …010101010100100001 |
3 | 20102220111000000112111 |
4 | 332233313111110201 |
5 | 2100441001334424 |
6 | 50541320355321 |
7 | 4603421166400 |
oct | 765767252441 |
9 | 212814000474 |
10 | 67375027489 |
11 | 266344a0400 |
12 | 11083915b41 |
13 | 647966cb93 |
14 | 3392153637 |
15 | 1b44e4b194 |
hex | fafdd5521 |
67375027489 has 27 divisors (see below), whose sum is σ = 86173325553. Its totient is φ = 52484447400.
The previous prime is 67375027457. The next prime is 67375027513. The reversal of 67375027489 is 98472057376.
The square root of 67375027489 is 259567.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 67375027489 - 25 = 67375027457 is a prime.
It is not an unprimeable number, because it can be changed into a prime (67375627489) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19984974 + ... + 19988344.
Almost surely, 267375027489 is an apocalyptic number.
67375027489 is the 259567-th square number.
67375027489 is the 129784-th centered octagonal number.
It is an amenable number.
67375027489 is a deficient number, since it is larger than the sum of its proper divisors (18798298064).
67375027489 is an frugal number, since it uses more digits than its factorization.
67375027489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6778 (or 3389 counting only the distinct ones).
The product of its (nonzero) digits is 17781120, while the sum is 58.
The spelling of 67375027489 in words is "sixty-seven billion, three hundred seventy-five million, twenty-seven thousand, four hundred eighty-nine".
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