Base | Representation |
---|---|
bin | 1010101100110001… |
… | …0011011011110101 |
3 | 21102011102021200010 |
4 | 2223030103123311 |
5 | 21340231114034 |
6 | 1152555410433 |
7 | 131113460502 |
oct | 25314233365 |
9 | 7364367603 |
10 | 2872129269 |
11 | 1244273259 |
12 | 681a53a19 |
13 | 36a062c99 |
14 | 1d363c4a9 |
15 | 11c2363e9 |
hex | ab3136f5 |
2872129269 has 16 divisors (see below), whose sum is σ = 3863072192. Its totient is φ = 1898028288.
The previous prime is 2872129259. The next prime is 2872129291. The reversal of 2872129269 is 9629212782.
It is not a de Polignac number, because 2872129269 - 227 = 2737911541 is a prime.
It is a super-2 number, since 2×28721292692 = 16498253075692948722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2872129259) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196902 + ... + 210984.
It is an arithmetic number, because the mean of its divisors is an integer number (241442012).
Almost surely, 22872129269 is an apocalyptic number.
It is an amenable number.
2872129269 is a deficient number, since it is larger than the sum of its proper divisors (990942923).
2872129269 is a wasteful number, since it uses less digits than its factorization.
2872129269 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14676.
The product of its digits is 435456, while the sum is 48.
The square root of 2872129269 is about 53592.2500833843. The cubic root of 2872129269 is about 1421.4600582799.
The spelling of 2872129269 in words is "two billion, eight hundred seventy-two million, one hundred twenty-nine thousand, two hundred sixty-nine".
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