Base | Representation |
---|---|
bin | 11100000011111000… |
… | …011000001010001101 |
3 | 2212202210200120121222 |
4 | 130003320120022031 |
5 | 443201222203431 |
6 | 21501431533125 |
7 | 2114434524551 |
oct | 340370301215 |
9 | 85683616558 |
10 | 30129881741 |
11 | 11861595113 |
12 | 5a0a52a1a5 |
13 | 2ac226babb |
14 | 165b7b7861 |
15 | bb523257b |
hex | 703e1828d |
30129881741 has 2 divisors, whose sum is σ = 30129881742. Its totient is φ = 30129881740.
The previous prime is 30129881681. The next prime is 30129881767. The reversal of 30129881741 is 14718892103.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23725240900 + 6404640841 = 154030^2 + 80029^2 .
It is a cyclic number.
It is not a de Polignac number, because 30129881741 - 210 = 30129880717 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30129881692 and 30129881701.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30129881141) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15064940870 + 15064940871.
It is an arithmetic number, because the mean of its divisors is an integer number (15064940871).
Almost surely, 230129881741 is an apocalyptic number.
It is an amenable number.
30129881741 is a deficient number, since it is larger than the sum of its proper divisors (1).
30129881741 is an equidigital number, since it uses as much as digits as its factorization.
30129881741 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96768, while the sum is 44.
The spelling of 30129881741 in words is "thirty billion, one hundred twenty-nine million, eight hundred eighty-one thousand, seven hundred forty-one".
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