Base | Representation |
---|---|
bin | 11101111111111001… |
… | …00001001001010001 |
3 | 1112120101210200000121 |
4 | 32333330201021101 |
5 | 230440413331140 |
6 | 11222034350241 |
7 | 1110050031160 |
oct | 167774411121 |
9 | 45511720017 |
10 | 16105214545 |
11 | 6914a79072 |
12 | 315572b381 |
13 | 1698804364 |
14 | acad1d3d7 |
15 | 643d7a64a |
hex | 3bff21251 |
16105214545 has 16 divisors (see below), whose sum is σ = 22202800128. Its totient is φ = 10985751360.
The previous prime is 16105214509. The next prime is 16105214561. The reversal of 16105214545 is 54541250161.
It is not a de Polignac number, because 16105214545 - 213 = 16105206353 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 16105214545.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197894 + ... + 1211263.
It is an arithmetic number, because the mean of its divisors is an integer number (1387675008).
Almost surely, 216105214545 is an apocalyptic number.
It is an amenable number.
16105214545 is a deficient number, since it is larger than the sum of its proper divisors (6097585583).
16105214545 is a wasteful number, since it uses less digits than its factorization.
16105214545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2409360.
The product of its (nonzero) digits is 24000, while the sum is 34.
The spelling of 16105214545 in words is "sixteen billion, one hundred five million, two hundred fourteen thousand, five hundred forty-five".
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