Base | Representation |
---|---|
bin | 11100100110000001… |
… | …100000101011101001 |
3 | 2221020201112211022210 |
4 | 130212001200223221 |
5 | 1000334342420124 |
6 | 22034333235333 |
7 | 2134561440441 |
oct | 344601405351 |
9 | 87221484283 |
10 | 30702701289 |
11 | 120259689a7 |
12 | 5b4a332b49 |
13 | 2b83b3bb90 |
14 | 16b38c7121 |
15 | bea681a29 |
hex | 726060ae9 |
30702701289 has 32 divisors (see below), whose sum is σ = 45528448000. Its totient is φ = 18276295680.
The previous prime is 30702701251. The next prime is 30702701297. The reversal of 30702701289 is 98210720703.
It is not a de Polignac number, because 30702701289 - 28 = 30702701033 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30702701789) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3682077 + ... + 3690405.
It is an arithmetic number, because the mean of its divisors is an integer number (1422764000).
Almost surely, 230702701289 is an apocalyptic number.
30702701289 is a gapful number since it is divisible by the number (39) formed by its first and last digit.
It is an amenable number.
30702701289 is a deficient number, since it is larger than the sum of its proper divisors (14825746711).
30702701289 is a wasteful number, since it uses less digits than its factorization.
30702701289 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11425.
The product of its (nonzero) digits is 42336, while the sum is 39.
The spelling of 30702701289 in words is "thirty billion, seven hundred two million, seven hundred one thousand, two hundred eighty-nine".
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