Base | Representation |
---|---|
bin | 1010100000011000… |
… | …0001110010010001 |
3 | 21021112121120220022 |
4 | 2220012001302101 |
5 | 21233424334330 |
6 | 1143501353225 |
7 | 126612620564 |
oct | 25006016221 |
9 | 7245546808 |
10 | 2820152465 |
11 | 12179a2319 |
12 | 668568815 |
13 | 35c364b90 |
14 | 1ca78c4db |
15 | 1178baae5 |
hex | a8181c91 |
2820152465 has 8 divisors (see below), whose sum is σ = 3644504808. Its totient is φ = 2082574080.
The previous prime is 2820152459. The next prime is 2820152479. The reversal of 2820152465 is 5642510282.
It can be written as a sum of positive squares in 4 ways, for example, as 117649 + 2820034816 = 343^2 + 53104^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2820152465 - 212 = 2820148369 is a prime.
It is a Duffinian number.
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 7 ways as a sum of consecutive naturals, for example, 21693416 + ... + 21693545.
It is an arithmetic number, because the mean of its divisors is an integer number (455563101).
Almost surely, 22820152465 is an apocalyptic number.
It is an amenable number.
2820152465 is a deficient number, since it is larger than the sum of its proper divisors (824352343).
2820152465 is a wasteful number, since it uses less digits than its factorization.
2820152465 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43386979.
The product of its (nonzero) digits is 38400, while the sum is 35.
The square root of 2820152465 is about 53105.1077110291. The cubic root of 2820152465 is about 1412.8331053476.
The spelling of 2820152465 in words is "two billion, eight hundred twenty million, one hundred fifty-two thousand, four hundred sixty-five".
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