Base | Representation |
---|---|
bin | 11100000110111110… |
… | …000110101001010110 |
3 | 2212220102012221211110 |
4 | 130012332012221112 |
5 | 443303004331033 |
6 | 21510522515450 |
7 | 2115634224534 |
oct | 340676065126 |
9 | 85812187743 |
10 | 30181714518 |
11 | 1188887791a |
12 | 5a23965b86 |
13 | 2accc19497 |
14 | 166462b154 |
15 | bb9a70363 |
hex | 706f86a56 |
30181714518 has 32 divisors (see below), whose sum is σ = 62056775520. Its totient is φ = 9778890240.
The previous prime is 30181714499. The next prime is 30181714561. The reversal of 30181714518 is 81541718103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156628 + ... + 291368.
It is an arithmetic number, because the mean of its divisors is an integer number (1939274235).
Almost surely, 230181714518 is an apocalyptic number.
30181714518 is an abundant number, since it is smaller than the sum of its proper divisors (31875061002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30181714518 is a wasteful number, since it uses less digits than its factorization.
30181714518 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 135792.
The product of its (nonzero) digits is 26880, while the sum is 39.
The spelling of 30181714518 in words is "thirty billion, one hundred eighty-one million, seven hundred fourteen thousand, five hundred eighteen".
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