Base | Representation |
---|---|
bin | 1000000000001… |
… | …01001100101011 |
3 | 11200022120021001 |
4 | 10000011030223 |
5 | 114141131110 |
6 | 10354455431 |
7 | 1443411511 |
oct | 400051453 |
9 | 150276231 |
10 | 67130155 |
11 | 34990974 |
12 | 1a594577 |
13 | 10ba54b1 |
14 | 8cb64b1 |
15 | 5d6063a |
hex | 400532b |
67130155 has 16 divisors (see below), whose sum is σ = 81807264. Its totient is φ = 52876800.
The previous prime is 67130153. The next prime is 67130179. The reversal of 67130155 is 55103176.
It is not a de Polignac number, because 67130155 - 21 = 67130153 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (67130153) 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, 154819 + ... + 155251.
It is an arithmetic number, because the mean of its divisors is an integer number (5112954).
Almost surely, 267130155 is an apocalyptic number.
67130155 is a deficient number, since it is larger than the sum of its proper divisors (14677109).
67130155 is a wasteful number, since it uses less digits than its factorization.
67130155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 846.
The product of its (nonzero) digits is 3150, while the sum is 28.
The square root of 67130155 is about 8193.2993964581. The cubic root of 67130155 is about 406.4176403201.
The spelling of 67130155 in words is "sixty-seven million, one hundred thirty thousand, one hundred fifty-five".
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