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66426 = 2311071
BaseRepresentation
bin10000001101111010
310101010020
4100031322
54111201
61231310
7364443
oct201572
9111106
1066426
11459a8
1232536
1324309
141a2ca
1514a36
hex1037a

66426 has 8 divisors (see below), whose sum is σ = 132864. Its totient is φ = 22140.

The previous prime is 66413. The next prime is 66431. The reversal of 66426 is 62466.

It is a sphenic number, since it is the product of 3 distinct primes.

66426 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 66396 and 66405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5530 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (16608).

266426 is an apocalyptic number.

66426 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.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66432).

66426 is a wasteful number, since it uses less digits than its factorization.

66426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076.

The product of its digits is 1728, while the sum is 24.

The square root of 66426 is about 257.7324193810. The cubic root of 66426 is about 40.4991616958.

The spelling of 66426 in words is "sixty-six thousand, four hundred twenty-six".

Divisors: 1 2 3 6 11071 22142 33213 66426