Base | Representation |
---|---|
bin | 101011111110110110… |
… | …000010000000000000 |
3 | 11111220012122020220122 |
4 | 223332312002000000 |
5 | 1233204130443132 |
6 | 33410040555412 |
7 | 3261200000000 |
oct | 537666020000 |
9 | 144805566818 |
10 | 47225249792 |
11 | 19034471166 |
12 | 919b782b68 |
13 | 45b7c435b6 |
14 | 2400000000 |
15 | 1365e96912 |
hex | afed82000 |
47225249792 has 126 divisors (see below), whose sum is σ = 110185521183. Its totient is φ = 20239392768.
The previous prime is 47225249791. The next prime is 47225249837. The reversal of 47225249792 is 29794252274.
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 only one way, i.e., 23612624896 + 23612624896 = 153664^2 + 153664^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=153664.
It is a Duffinian number.
Its product of digits (5080320) is a multiple of the sum of its prime divisors (9).
It is not an unprimeable number, because it can be changed into a prime (47225249791) 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, 6746464253 + ... + 6746464259.
Almost surely, 247225249792 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47225249792
47225249792 is an abundant number, since it is smaller than the sum of its proper divisors (62960271391).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47225249792 is an frugal number, since it uses more digits than its factorization.
47225249792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82 (or 9 counting only the distinct ones).
The product of its digits is 5080320, while the sum is 53.
The spelling of 47225249792 in words is "forty-seven billion, two hundred twenty-five million, two hundred forty-nine thousand, seven hundred ninety-two".
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