Base | Representation |
---|---|
bin | 11100000011110111… |
… | …100100010001111001 |
3 | 2212202210021210010121 |
4 | 130003313210101321 |
5 | 443201143403431 |
6 | 21501423213241 |
7 | 2114432651200 |
oct | 340367442171 |
9 | 85683253117 |
10 | 30129669241 |
11 | 1186145a4a1 |
12 | 5a0a447221 |
13 | 2ac21c6169 |
14 | 165b760237 |
15 | bb51de611 |
hex | 703de4479 |
30129669241 has 27 divisors (see below), whose sum is σ = 35502638157. Its totient is φ = 25495283520.
The previous prime is 30129669239. The next prime is 30129669253. The reversal of 30129669241 is 14296692103.
The square root of 30129669241 is 173579.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 9392517225 + 20737152016 = 96915^2 + 144004^2 .
It is not a de Polignac number, because 30129669241 - 21 = 30129669239 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30129669281) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 166462171 + ... + 166462351.
Almost surely, 230129669241 is an apocalyptic number.
30129669241 is the 173579-th square number.
30129669241 is the 86790-th centered octagonal number.
It is an amenable number.
30129669241 is a deficient number, since it is larger than the sum of its proper divisors (5372968916).
30129669241 is an frugal number, since it uses more digits than its factorization.
30129669241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 650 (or 325 counting only the distinct ones).
The product of its (nonzero) digits is 139968, while the sum is 43.
The spelling of 30129669241 in words is "thirty billion, one hundred twenty-nine million, six hundred sixty-nine thousand, two hundred forty-one".
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