Base | Representation |
---|---|
bin | 100000001001100011… |
… | …1011111000000110000 |
3 | 20121012112022211211221 |
4 | 1000103013133000300 |
5 | 2112343243041442 |
6 | 51414443114424 |
7 | 4662611032021 |
oct | 1002307370060 |
9 | 217175284757 |
10 | 69040205872 |
11 | 2730943a590 |
12 | 11469512a14 |
13 | 6683646931 |
14 | 34ad372c48 |
15 | 1be1222467 |
hex | 10131df030 |
69040205872 has 40 divisors (see below), whose sum is σ = 146103505920. Its totient is φ = 31343714880.
The previous prime is 69040205867. The next prime is 69040205873. The reversal of 69040205872 is 27850204096.
It is not an unprimeable number, because it can be changed into a prime (69040205873) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93472 + ... + 383167.
It is an arithmetic number, because the mean of its divisors is an integer number (3652587648).
Almost surely, 269040205872 is an apocalyptic number.
It is an amenable number.
69040205872 is an abundant number, since it is smaller than the sum of its proper divisors (77063300048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69040205872 is a wasteful number, since it uses less digits than its factorization.
69040205872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 477481 (or 477475 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 43.
The spelling of 69040205872 in words is "sixty-nine billion, forty million, two hundred five thousand, eight hundred seventy-two".
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