Base | Representation |
---|---|
bin | 1010111111001000… |
… | …0010100110111001 |
3 | 21121112022100202021 |
4 | 2233302002212321 |
5 | 22014434140211 |
6 | 1204350034441 |
7 | 133040124430 |
oct | 25762024671 |
9 | 7545270667 |
10 | 2949130681 |
11 | 1283786592 |
12 | 6a37a8a21 |
13 | 37ccb3553 |
14 | 1dd964117 |
15 | 123d96771 |
hex | afc829b9 |
2949130681 has 8 divisors (see below), whose sum is σ = 3378444224. Its totient is φ = 2521819440.
The previous prime is 2949130663. The next prime is 2949130703. The reversal of 2949130681 is 1860319492.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2949130681 - 25 = 2949130649 is a prime.
It is a super-2 number, since 2×29491306812 = 17394743547231047522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2949130601) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497415 + ... + 503308.
It is an arithmetic number, because the mean of its divisors is an integer number (422305528).
Almost surely, 22949130681 is an apocalyptic number.
It is an amenable number.
2949130681 is a deficient number, since it is larger than the sum of its proper divisors (429313543).
2949130681 is a wasteful number, since it uses less digits than its factorization.
2949130681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1001151.
The product of its (nonzero) digits is 93312, while the sum is 43.
The square root of 2949130681 is about 54305.8991362817. The cubic root of 2949130681 is about 1434.0512501565.
The spelling of 2949130681 in words is "two billion, nine hundred forty-nine million, one hundred thirty thousand, six hundred eighty-one".
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