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66002 = 261541
BaseRepresentation
bin10000000111010010
310100112112
4100013102
54103002
61225322
7363266
oct200722
9110475
1066002
1145652
1232242
1324071
141a0a6
1514852
hex101d2

66002 has 8 divisors (see below), whose sum is σ = 100812. Its totient is φ = 32400.

The previous prime is 65993. The next prime is 66029. The reversal of 66002 is 20066.

It can be written as a sum of positive squares in 2 ways, for example, as 58081 + 7921 = 241^2 + 89^2 .

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

It is an unprimeable number.

66002 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149 + ... + 392.

266002 is an apocalyptic number.

66002 is a deficient number, since it is larger than the sum of its proper divisors (34810).

66002 is a wasteful number, since it uses less digits than its factorization.

66002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 66002 is about 256.9085440385. The cubic root of 66002 is about 40.4128084082.

Adding to 66002 its reverse (20066), we get a palindrome (86068).

The spelling of 66002 in words is "sixty-six thousand, two", and thus it is an eban number.

Divisors: 1 2 61 122 541 1082 33001 66002