Base | Representation |
---|---|
bin | 1101101110001111011111… |
… | …10010000100110111110101 |
3 | 10221211210222001010022202121 |
4 | 12313013233302010313311 |
5 | 12423401243020324211 |
6 | 144102423521435541 |
7 | 6233104402006534 |
oct | 667075762046765 |
9 | 127753861108677 |
10 | 30176168136181 |
11 | 9684706249231 |
12 | 347441579bbb1 |
13 | 13ab7a6240c52 |
14 | 76476a2bc31b |
15 | 374e40dc0271 |
hex | 1b71efc84df5 |
30176168136181 has 8 divisors (see below), whose sum is σ = 32475027619224. Its totient is φ = 27935507627520.
The previous prime is 30176168136109. The next prime is 30176168136239. The reversal of 30176168136181 is 18163186167103.
It can be written as a sum of positive squares in 4 ways, for example, as 3045143661156 + 27131024475025 = 1745034^2 + 5208745^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30176168136181 - 215 = 30176168103413 is a prime.
It is a super-2 number, since 2×301761681361812 (a number of 28 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 (30176168136481) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14549742520 + ... + 14549744593.
It is an arithmetic number, because the mean of its divisors is an integer number (4059378452403).
Almost surely, 230176168136181 is an apocalyptic number.
It is an amenable number.
30176168136181 is a deficient number, since it is larger than the sum of its proper divisors (2298859483043).
30176168136181 is a wasteful number, since it uses less digits than its factorization.
30176168136181 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29099487191.
The product of its (nonzero) digits is 870912, while the sum is 52.
The spelling of 30176168136181 in words is "thirty trillion, one hundred seventy-six billion, one hundred sixty-eight million, one hundred thirty-six thousand, one hundred eighty-one".
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