Base | Representation |
---|---|
bin | 100110101101111010… |
… | …1100101110100111001 |
3 | 21221121112021102222120 |
4 | 1031123311211310321 |
5 | 2330240124410344 |
6 | 102110225111453 |
7 | 6002262101232 |
oct | 1153365456471 |
9 | 257545242876 |
10 | 83145153849 |
11 | 322972a978a |
12 | 14145188589 |
13 | 7ac090c4b4 |
14 | 404a768089 |
15 | 2269686219 |
hex | 135bd65d39 |
83145153849 has 16 divisors (see below), whose sum is σ = 112695923904. Its totient is φ = 54512539200.
The previous prime is 83145153829. The next prime is 83145153857. The reversal of 83145153849 is 94835154138.
It is not a de Polignac number, because 83145153849 - 224 = 83128376633 is a prime.
It is not an unprimeable number, because it can be changed into a prime (83145153829) 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, 1204039 + ... + 1271219.
It is an arithmetic number, because the mean of its divisors is an integer number (7043495244).
Almost surely, 283145153849 is an apocalyptic number.
It is an amenable number.
83145153849 is a deficient number, since it is larger than the sum of its proper divisors (29550770055).
83145153849 is a wasteful number, since it uses less digits than its factorization.
83145153849 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74008.
The product of its digits is 2073600, while the sum is 51.
The spelling of 83145153849 in words is "eighty-three billion, one hundred forty-five million, one hundred fifty-three thousand, eight hundred forty-nine".
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