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64828 = 2219853
BaseRepresentation
bin1111110100111100
310021221001
433310330
54033303
61220044
7360001
oct176474
9107831
1064828
1144785
1231624
132367a
14198a8
151431d
hexfd3c

64828 has 12 divisors (see below), whose sum is σ = 119560. Its totient is φ = 30672.

The previous prime is 64817. The next prime is 64849. The reversal of 64828 is 82846.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 64796 and 64805.

It is a congruent number.

It is an unprimeable number.

64828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351 + ... + 502.

264828 is an apocalyptic number.

It is an amenable number.

64828 is a deficient number, since it is larger than the sum of its proper divisors (54732).

64828 is a wasteful number, since it uses less digits than its factorization.

64828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 874 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 64828 is about 254.6134324815. The cubic root of 64828 is about 40.1717613949.

It can be divided in two parts, 648 and 28, that added together give a palindrome (676).

The spelling of 64828 in words is "sixty-four thousand, eight hundred twenty-eight".

Divisors: 1 2 4 19 38 76 853 1706 3412 16207 32414 64828