Base | Representation |
---|---|
bin | 1010011001110100100… |
… | …1011001011001000001 |
3 | 122002100000022010010210 |
4 | 2212131021121121001 |
5 | 10412014404122340 |
6 | 214035115144333 |
7 | 15625046111643 |
oct | 2463511313101 |
9 | 562300263123 |
10 | 178730145345 |
11 | 69887564624 |
12 | 2a7804450a9 |
13 | 13b1483276b |
14 | 89172c4893 |
15 | 49b0ec0180 |
hex | 299d259641 |
178730145345 has 16 divisors (see below), whose sum is σ = 301019192640. Its totient is φ = 90305757504.
The previous prime is 178730145313. The next prime is 178730145359. The reversal of 178730145345 is 543541037871.
It is not a de Polignac number, because 178730145345 - 25 = 178730145313 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 178730145294 and 178730145303.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313561374 + ... + 313561943.
It is an arithmetic number, because the mean of its divisors is an integer number (18813699540).
Almost surely, 2178730145345 is an apocalyptic number.
178730145345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
178730145345 is a deficient number, since it is larger than the sum of its proper divisors (122289047295).
178730145345 is a wasteful number, since it uses less digits than its factorization.
178730145345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 627123344.
The product of its (nonzero) digits is 1411200, while the sum is 48.
The spelling of 178730145345 in words is "one hundred seventy-eight billion, seven hundred thirty million, one hundred forty-five thousand, three hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •