Base | Representation |
---|---|
bin | 100100101000000110… |
… | …1000011010101100001 |
3 | 21112000121021111202220 |
4 | 1021100031003111201 |
5 | 2242041140311040 |
6 | 100044505501253 |
7 | 5453100361245 |
oct | 1112015032541 |
9 | 245017244686 |
10 | 78655010145 |
11 | 303a2780318 |
12 | 132b14a1829 |
13 | 75565a702a |
14 | 3b422a6425 |
15 | 20a53932d0 |
hex | 1250343561 |
78655010145 has 16 divisors (see below), whose sum is σ = 129249314880. Its totient is φ = 40815572544.
The previous prime is 78655010131. The next prime is 78655010207. The reversal of 78655010145 is 54101055687.
It is not a de Polignac number, because 78655010145 - 216 = 78654944609 is a prime.
It is a super-2 number, since 2×786550101452 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 78655010097 and 78655010106.
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, 70859815 + ... + 70860924.
It is an arithmetic number, because the mean of its divisors is an integer number (8078082180).
Almost surely, 278655010145 is an apocalyptic number.
It is an amenable number.
78655010145 is a deficient number, since it is larger than the sum of its proper divisors (50594304735).
78655010145 is a wasteful number, since it uses less digits than its factorization.
78655010145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141720784.
The product of its (nonzero) digits is 168000, while the sum is 42.
The spelling of 78655010145 in words is "seventy-eight billion, six hundred fifty-five million, ten thousand, one hundred forty-five".
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