Base | Representation |
---|---|
bin | 100000111010000100… |
… | …1000011010000001000 |
3 | 20202101222022200101200 |
4 | 1001310021003100020 |
5 | 2124212002201113 |
6 | 52244152344200 |
7 | 5051135100126 |
oct | 1016411032010 |
9 | 222358280350 |
10 | 70668006408 |
11 | 27a7427a18a |
12 | 118426a5060 |
13 | 688296450c |
14 | 35c5622916 |
15 | 1c890b3873 |
hex | 1074243408 |
70668006408 has 24 divisors (see below), whose sum is σ = 191392517550. Its totient is φ = 23556002112.
The previous prime is 70668006373. The next prime is 70668006427. The reversal of 70668006408 is 80460086607.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 49222747044 + 21445259364 = 221862^2 + 146442^2 .
It is a tau number, because it is divible by the number of its divisors (24).
It is a super-2 number, since 2×706680064082 (a number of 22 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 490749973 + ... + 490750116.
Almost surely, 270668006408 is an apocalyptic number.
It is an amenable number.
70668006408 is an abundant number, since it is smaller than the sum of its proper divisors (120724511142).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70668006408 is a wasteful number, since it uses less digits than its factorization.
70668006408 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 981500101 (or 981500094 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The spelling of 70668006408 in words is "seventy billion, six hundred sixty-eight million, six thousand, four hundred eight".
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