Base | Representation |
---|---|
bin | 100000001110111011… |
… | …0011001001011001000 |
3 | 20121200002011022002202 |
4 | 1000131312121023020 |
5 | 2113230342244023 |
6 | 51444354415332 |
7 | 5000225425412 |
oct | 1003566311310 |
9 | 217602138082 |
10 | 69220274888 |
11 | 273a104a056 |
12 | 114b9891548 |
13 | 66b1a4304b |
14 | 34c92479b2 |
15 | 1c01e41128 |
hex | 101dd992c8 |
69220274888 has 36 divisors (see below), whose sum is σ = 130804679985. Its totient is φ = 34341126496.
The previous prime is 69220274881. The next prime is 69220274891. The reversal of 69220274888 is 88847202296.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 54194908804 + 15025366084 = 232798^2 + 122578^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=186038.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69220274881) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 124273106 + ... + 124273662.
Almost surely, 269220274888 is an apocalyptic number.
It is an amenable number.
69220274888 is a deficient number, since it is larger than the sum of its proper divisors (61584405097).
69220274888 is an frugal number, since it uses more digits than its factorization.
69220274888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1454 (or 726 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 56.
The spelling of 69220274888 in words is "sixty-nine billion, two hundred twenty million, two hundred seventy-four thousand, eight hundred eighty-eight".
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