Base | Representation |
---|---|
bin | 1101010101010000… |
… | …11000101110010001 |
3 | 200110211102212111211 |
4 | 12222220120232101 |
5 | 104124331243131 |
6 | 3142125540121 |
7 | 342242166520 |
oct | 65250305621 |
9 | 20424385454 |
10 | 7157681041 |
11 | 3043362785 |
12 | 1479114641 |
13 | 8a0b94034 |
14 | 4bc8844b7 |
15 | 2bd5b45b1 |
hex | 1aaa18b91 |
7157681041 has 8 divisors (see below), whose sum is σ = 8180754624. Its totient is φ = 6134744400.
The previous prime is 7157681033. The next prime is 7157681053. The reversal of 7157681041 is 1401867517.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 7157681041 - 23 = 7157681033 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 7157680985 and 7157681003.
It is not an unprimeable number, because it can be changed into a prime (7157681341) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130866 + ... + 177316.
It is an arithmetic number, because the mean of its divisors is an integer number (1022594328).
Almost surely, 27157681041 is an apocalyptic number.
It is an amenable number.
7157681041 is a deficient number, since it is larger than the sum of its proper divisors (1023073583).
7157681041 is a wasteful number, since it uses less digits than its factorization.
7157681041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68471.
The product of its (nonzero) digits is 47040, while the sum is 40.
The square root of 7157681041 is about 84603.0793824906. The cubic root of 7157681041 is about 1927.1881378650.
The spelling of 7157681041 in words is "seven billion, one hundred fifty-seven million, six hundred eighty-one thousand, forty-one".
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