Base | Representation |
---|---|
bin | 111011110000111000… |
… | …110111010000110001 |
3 | 20010122012000120012211 |
4 | 323300320313100301 |
5 | 2022410232333101 |
6 | 45251342452121 |
7 | 4431134222263 |
oct | 736070672061 |
9 | 203565016184 |
10 | 64170980401 |
11 | 2523a933400 |
12 | 1052a894041 |
13 | 6088915228 |
14 | 316a7d3b33 |
15 | 1a089edc51 |
hex | ef0e37431 |
64170980401 has 24 divisors (see below), whose sum is σ = 74818168992. Its totient is φ = 54807139200.
The previous prime is 64170980369. The next prime is 64170980407. The reversal of 64170980401 is 10408907146.
It is not a de Polignac number, because 64170980401 - 25 = 64170980369 is a prime.
It is a super-2 number, since 2×641709804012 (a number of 22 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (64170980407) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130386 + ... + 1185796.
It is an arithmetic number, because the mean of its divisors is an integer number (3117423708).
Almost surely, 264170980401 is an apocalyptic number.
It is an amenable number.
64170980401 is a deficient number, since it is larger than the sum of its proper divisors (10647188591).
64170980401 is a wasteful number, since it uses less digits than its factorization.
64170980401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56013 (or 56002 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 40.
The spelling of 64170980401 in words is "sixty-four billion, one hundred seventy million, nine hundred eighty thousand, four hundred one".
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