Base | Representation |
---|---|
bin | 1000000101110… |
… | …01101001100000 |
3 | 11201201010011001 |
4 | 10002321221200 |
5 | 114333304110 |
6 | 10422401344 |
7 | 1452610423 |
oct | 402715140 |
9 | 151633131 |
10 | 67869280 |
11 | 35346216 |
12 | 1a890254 |
13 | 110a3a4b |
14 | 90299ba |
15 | 5e5963a |
hex | 40b9a60 |
67869280 has 48 divisors (see below), whose sum is σ = 165881520. Its totient is φ = 26209792.
The previous prime is 67869257. The next prime is 67869281. The reversal of 67869280 is 8296876.
It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 67869280.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67869281) 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, 2674 + ... + 11953.
It is an arithmetic number, because the mean of its divisors is an integer number (3455865).
Almost surely, 267869280 is an apocalyptic number.
It is an amenable number.
67869280 is an abundant number, since it is smaller than the sum of its proper divisors (98012240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67869280 is a wasteful number, since it uses less digits than its factorization.
67869280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14671 (or 14663 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 46.
The square root of 67869280 is about 8238.2813741702. The cubic root of 67869280 is about 407.9037963616.
The spelling of 67869280 in words is "sixty-seven million, eight hundred sixty-nine thousand, two hundred eighty".
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