Base | Representation |
---|---|
bin | 111111111101010111… |
… | …110000100000100010 |
3 | 20120021002211102100200 |
4 | 333331113300200202 |
5 | 2111121343414330 |
6 | 51314331330030 |
7 | 4650561016422 |
oct | 777527604042 |
9 | 216232742320 |
10 | 68675373090 |
11 | 27141504295 |
12 | 113872b0916 |
13 | 6625b9924c |
14 | 3476b24482 |
15 | 1bbe1a8a60 |
hex | ffd5f0822 |
68675373090 has 24 divisors (see below), whose sum is σ = 178555970268. Its totient is φ = 18313432800.
The previous prime is 68675373079. The next prime is 68675373103. The reversal of 68675373090 is 9037357686.
It can be written as a sum of positive squares in 2 ways, for example, as 68028637329 + 646735761 = 260823^2 + 25431^2 .
It is a super-2 number, since 2×686753730902 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381529761 + ... + 381529940.
Almost surely, 268675373090 is an apocalyptic number.
68675373090 is an abundant number, since it is smaller than the sum of its proper divisors (109880597178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68675373090 is a wasteful number, since it uses less digits than its factorization.
68675373090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 763059714 (or 763059711 counting only the distinct ones).
The product of its (nonzero) digits is 5715360, while the sum is 54.
The spelling of 68675373090 in words is "sixty-eight billion, six hundred seventy-five million, three hundred seventy-three thousand, ninety".
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