Base | Representation |
---|---|
bin | 111111110001010000… |
… | …100101010101101101 |
3 | 20112201221110102021120 |
4 | 333301100211111231 |
5 | 2110212333300431 |
6 | 51242232051153 |
7 | 4642542543240 |
oct | 776120452555 |
9 | 215657412246 |
10 | 68472165741 |
11 | 27047830631 |
12 | 1132b233ab9 |
13 | 65c2a5b105 |
14 | 3457b49257 |
15 | 1bab419196 |
hex | ff142556d |
68472165741 has 16 divisors (see below), whose sum is σ = 105895832064. Its totient is φ = 38542966704.
The previous prime is 68472165739. The next prime is 68472165757. The reversal of 68472165741 is 14756127486.
It is not a de Polignac number, because 68472165741 - 21 = 68472165739 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68472165841) 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, 24331275 + ... + 24334088.
It is an arithmetic number, because the mean of its divisors is an integer number (6618489504).
Almost surely, 268472165741 is an apocalyptic number.
It is an amenable number.
68472165741 is a deficient number, since it is larger than the sum of its proper divisors (37423666323).
68472165741 is a wasteful number, since it uses less digits than its factorization.
68472165741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48665440.
The product of its digits is 2257920, while the sum is 51.
The spelling of 68472165741 in words is "sixty-eight billion, four hundred seventy-two million, one hundred sixty-five thousand, seven hundred forty-one".
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