Base | Representation |
---|---|
bin | 11100101000001110… |
… | …011100010100010011 |
3 | 2221100022001210112212 |
4 | 130220032130110103 |
5 | 1000423322130330 |
6 | 22042133142335 |
7 | 2135520451232 |
oct | 345016342423 |
9 | 87308053485 |
10 | 30739645715 |
11 | 12044801889 |
12 | 5b5a78a9ab |
13 | 2b8b6a599c |
14 | 16b8782b19 |
15 | beda2d295 |
hex | 72839c513 |
30739645715 has 16 divisors (see below), whose sum is σ = 37013691360. Its totient is φ = 24507774720.
The previous prime is 30739645711. The next prime is 30739645793. The reversal of 30739645715 is 51754693703.
It is not a de Polignac number, because 30739645715 - 22 = 30739645711 is a prime.
It is a super-2 number, since 2×307396457152 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30739645711) 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, 1954985 + ... + 1970645.
It is an arithmetic number, because the mean of its divisors is an integer number (2313355710).
Almost surely, 230739645715 is an apocalyptic number.
30739645715 is a deficient number, since it is larger than the sum of its proper divisors (6274045645).
30739645715 is a wasteful number, since it uses less digits than its factorization.
30739645715 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16982.
The product of its (nonzero) digits is 2381400, while the sum is 50.
The spelling of 30739645715 in words is "thirty billion, seven hundred thirty-nine million, six hundred forty-five thousand, seven hundred fifteen".
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