Base | Representation |
---|---|
bin | 11100000110001100… |
… | …011001000000001111 |
3 | 2212212111200212021112 |
4 | 130012030121000033 |
5 | 443241140320021 |
6 | 21505335322235 |
7 | 2115415366412 |
oct | 340614310017 |
9 | 85774625245 |
10 | 30168682511 |
11 | 11881486770 |
12 | 5a1b52037b |
13 | 2aca305836 |
14 | 16629d7b79 |
15 | bb8848d5b |
hex | 70631900f |
30168682511 has 16 divisors (see below), whose sum is σ = 34853753088. Its totient is φ = 25807958400.
The previous prime is 30168682507. The next prime is 30168682519. The reversal of 30168682511 is 11528686103.
It is not a de Polignac number, because 30168682511 - 22 = 30168682507 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30168682519) 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, 1292006 + ... + 1315148.
It is an arithmetic number, because the mean of its divisors is an integer number (2178359568).
Almost surely, 230168682511 is an apocalyptic number.
30168682511 is a deficient number, since it is larger than the sum of its proper divisors (4685070577).
30168682511 is a wasteful number, since it uses less digits than its factorization.
30168682511 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30142.
The product of its (nonzero) digits is 69120, while the sum is 41.
The spelling of 30168682511 in words is "thirty billion, one hundred sixty-eight million, six hundred eighty-two thousand, five hundred eleven".
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