Base | Representation |
---|---|
bin | 11100101011111011… |
… | …101010111011110111 |
3 | 2221111122002021110021 |
4 | 130223323222323313 |
5 | 1001040232134334 |
6 | 22052234110011 |
7 | 2140204160326 |
oct | 345373527367 |
9 | 87448067407 |
10 | 30801833719 |
11 | 12076917628 |
12 | 5b7757b307 |
13 | 2b9b53a817 |
14 | 16c2b300bd |
15 | c042143b4 |
hex | 72beeaef7 |
30801833719 has 4 divisors (see below), whose sum is σ = 30924550440. Its totient is φ = 30679117000.
The previous prime is 30801833683. The next prime is 30801833723. The reversal of 30801833719 is 91733810803.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30801833719 - 27 = 30801833591 is a prime.
It is a super-2 number, since 2×308018337192 (a number of 22 digits) 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 (30801833729) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61357984 + ... + 61358485.
It is an arithmetic number, because the mean of its divisors is an integer number (7731137610).
Almost surely, 230801833719 is an apocalyptic number.
30801833719 is a deficient number, since it is larger than the sum of its proper divisors (122716721).
30801833719 is a wasteful number, since it uses less digits than its factorization.
30801833719 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122716720.
The product of its (nonzero) digits is 108864, while the sum is 43.
The spelling of 30801833719 in words is "thirty billion, eight hundred one million, eight hundred thirty-three thousand, seven hundred nineteen".
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