Base | Representation |
---|---|
bin | 1010100101101111010… |
… | …0011010011101001110 |
3 | 122101120221200111021102 |
4 | 2221123310122131032 |
5 | 10440042321433232 |
6 | 215324351503102 |
7 | 16100241526532 |
oct | 2513364323516 |
9 | 571527614242 |
10 | 181929092942 |
11 | 70179259273 |
12 | 2b313827a92 |
13 | 142044c326c |
14 | 8b3c0b7bc2 |
15 | 4aebc61662 |
hex | 2a5bd1a74e |
181929092942 has 32 divisors (see below), whose sum is σ = 298879869600. Its totient is φ = 82724277888.
The previous prime is 181929092921. The next prime is 181929092951. The reversal of 181929092942 is 249290929181.
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, 286493 + ... + 667784.
It is an arithmetic number, because the mean of its divisors is an integer number (9339995925).
Almost surely, 2181929092942 is an apocalyptic number.
181929092942 is a deficient number, since it is larger than the sum of its proper divisors (116950776658).
181929092942 is a wasteful number, since it uses less digits than its factorization.
181929092942 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 954500.
The product of its (nonzero) digits is 1679616, while the sum is 56.
The spelling of 181929092942 in words is "one hundred eighty-one billion, nine hundred twenty-nine million, ninety-two thousand, nine hundred forty-two".
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