Base | Representation |
---|---|
bin | 111110000001110… |
… | …0000101011100000 |
3 | 12101001022202002200 |
4 | 1330003200223200 |
5 | 13230302420242 |
6 | 542305213200 |
7 | 102401500443 |
oct | 17403405340 |
9 | 5331282080 |
10 | 2081295072 |
11 | 97892287a |
12 | 4a1031200 |
13 | 27226c05c |
14 | 15a5bb65a |
15 | c2ac004c |
hex | 7c0e0ae0 |
2081295072 has 72 divisors (see below), whose sum is σ = 5923289736. Its totient is φ = 693225216.
The previous prime is 2081295067. The next prime is 2081295077. The reversal of 2081295072 is 2705921802.
2081295072 is a `hidden beast` number, since 20 + 8 + 129 + 507 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (2081295067) and next prime (2081295077).
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2081295077) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570438 + ... + 574074.
It is an arithmetic number, because the mean of its divisors is an integer number (82267913).
Almost surely, 22081295072 is an apocalyptic number.
It is an amenable number.
2081295072 is an abundant number, since it is smaller than the sum of its proper divisors (3841994664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2081295072 is a wasteful number, since it uses less digits than its factorization.
2081295072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5640 (or 5629 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 36.
The square root of 2081295072 is about 45621.2129606393. The cubic root of 2081295072 is about 1276.7657343773.
The spelling of 2081295072 in words is "two billion, eighty-one million, two hundred ninety-five thousand, seventy-two".
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