Base | Representation |
---|---|
bin | 1000000110011… |
… | …00101000101000 |
3 | 11201212001211100 |
4 | 10003030220220 |
5 | 114343301143 |
6 | 10424201400 |
7 | 1453353231 |
oct | 403145050 |
9 | 151761740 |
10 | 67947048 |
11 | 35399694 |
12 | 1a909260 |
13 | 11100270 |
14 | 904a088 |
15 | 5e726d3 |
hex | 40cca28 |
67947048 has 96 divisors (see below), whose sum is σ = 199672200. Its totient is φ = 20749824.
The previous prime is 67947023. The next prime is 67947091. The reversal of 67947048 is 84074976.
It is a Cunningham number, because it is equal to 82432-1.
It can be written as a sum of positive squares in 4 ways, for example, as 46212804 + 21734244 = 6798^2 + 4662^2 .
It is a junction number, because it is equal to n+sod(n) for n = 67946994 and 67947012.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214186 + ... + 214502.
Almost surely, 267947048 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 67947048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99836100).
67947048 is an abundant number, since it is smaller than the sum of its proper divisors (131725152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67947048 is a wasteful number, since it uses less digits than its factorization.
67947048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 571 (or 564 counting only the distinct ones).
The product of its (nonzero) digits is 338688, while the sum is 45.
The square root of 67947048 is about 8242.9999393425. Note that the first 4 decimals coincide. The cubic root of 67947048 is about 408.0595357181.
The spelling of 67947048 in words is "sixty-seven million, nine hundred forty-seven thousand, forty-eight".
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