Base | Representation |
---|---|
bin | 111000111001111001111… |
… | …1011111010101011111101 |
3 | 1000200200012021022210100011 |
4 | 1301303303323322223331 |
5 | 2011114232330032320 |
6 | 24344515333503221 |
7 | 1435021004022652 |
oct | 161636373725375 |
9 | 30620167283304 |
10 | 7820933049085 |
11 | 25459258a6702 |
12 | a638ba7a1b11 |
13 | 449684378080 |
14 | 1d076c763c29 |
15 | d869161605a |
hex | 71cf3efaafd |
7820933049085 has 24 divisors (see below), whose sum is σ = 10666999448280. Its totient is φ = 5471486748288.
The previous prime is 7820933049031. The next prime is 7820933049101. The reversal of 7820933049085 is 5809403390287.
It can be written as a sum of positive squares in 4 ways, for example, as 741491487801 + 7079441561284 = 861099^2 + 2660722^2 .
It is not a de Polignac number, because 7820933049085 - 217 = 7820932918013 is a prime.
It is a super-2 number, since 2×78209330490852 (a number of 27 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166627570 + ... + 166674499.
It is an arithmetic number, because the mean of its divisors is an integer number (444458310345).
Almost surely, 27820933049085 is an apocalyptic number.
It is an amenable number.
7820933049085 is a deficient number, since it is larger than the sum of its proper divisors (2846066399195).
7820933049085 is a wasteful number, since it uses less digits than its factorization.
7820933049085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333302125 (or 333302106 counting only the distinct ones).
The product of its (nonzero) digits is 13063680, while the sum is 58.
The spelling of 7820933049085 in words is "seven trillion, eight hundred twenty billion, nine hundred thirty-three million, forty-nine thousand, eighty-five".
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