Search a number
-
+
26666668 = 227952381
BaseRepresentation
bin110010110111…
…0011010101100
31212011210210101
41211232122230
523311313133
62351320444
7442443250
oct145563254
955153711
1026666668
1114064076
128b20124
1356a89c2
143782260
15251b37d
hex196e6ac

26666668 has 12 divisors (see below), whose sum is σ = 53333392. Its totient is φ = 11428560.

The previous prime is 26666663. The next prime is 26666669. The reversal of 26666668 is 86666662.

26666668 is an admirable number.

It is a super-2 number, since 2×266666682 = 1422222364444448, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (26666663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476163 + ... + 476218.

Almost surely, 226666668 is an apocalyptic number.

26666668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26666668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26666668 is a wasteful number, since it uses less digits than its factorization.

26666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952392 (or 952390 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 26666668 is about 5163.9779240427. The cubic root of 26666668 is about 298.7603214165.

The spelling of 26666668 in words is "twenty-six million, six hundred sixty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 952381 1904762 3809524 6666667 13333334 26666668