Base | Representation |
---|---|
bin | 111110100101101110… |
… | …100111000001010000 |
3 | 20102110122000010111110 |
4 | 332211232213001100 |
5 | 2100113432443103 |
6 | 50512403413320 |
7 | 4566254543565 |
oct | 764556470120 |
9 | 212418003443 |
10 | 67204968528 |
11 | 265574a8605 |
12 | 11036984240 |
13 | 6450369a89 |
14 | 337772686c |
15 | 1b35058403 |
hex | fa5ba7050 |
67204968528 has 80 divisors (see below), whose sum is σ = 177445267776. Its totient is φ = 21912499200.
The previous prime is 67204968499. The next prime is 67204968529. The reversal of 67204968528 is 82586940276.
It is a happy number.
67204968528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67204968529) 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, 318876 + ... + 485892.
Almost surely, 267204968528 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 67204968528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88722633888).
67204968528 is an abundant number, since it is smaller than the sum of its proper divisors (110240299248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67204968528 is a wasteful number, since it uses less digits than its factorization.
67204968528 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 167212 (or 167206 counting only the distinct ones).
The product of its (nonzero) digits is 11612160, while the sum is 57.
The spelling of 67204968528 in words is "sixty-seven billion, two hundred four million, nine hundred sixty-eight thousand, five hundred twenty-eight".
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