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66832 = 244177
BaseRepresentation
bin10000010100010000
310101200021
4100110100
54114312
61233224
7365563
oct202420
9111607
1066832
1146237
1232814
132455c
141a4da
1514c07
hex10510

66832 has 10 divisors (see below), whose sum is σ = 129518. Its totient is φ = 33408.

The previous prime is 66821. The next prime is 66841. The reversal of 66832 is 23866.

66832 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 65536 + 1296 = 256^2 + 36^2 .

It is an Ulam number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 66797 and 66806.

It is an unprimeable number.

66832 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 as a sum of consecutive naturals, namely, 2073 + ... + 2104.

266832 is an apocalyptic number.

It is an amenable number.

66832 is a deficient number, since it is larger than the sum of its proper divisors (62686).

66832 is a wasteful number, since it uses less digits than its factorization.

66832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185 (or 4179 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 66832 is about 258.5188581129. The cubic root of 66832 is about 40.5815053233.

It can be divided in two parts, 6683 and 2, that multiplied together give a triangular number (13366 = T163).

The spelling of 66832 in words is "sixty-six thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 4177 8354 16708 33416 66832