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64516 = 221272
BaseRepresentation
bin1111110000000100
310021111111
433300010
54031031
61214404
7356044
oct176004
9107444
1064516
1144521
1231404
132349a
1419724
15141b1
hexfc04

64516 has 9 divisors (see below), whose sum is σ = 113799. Its totient is φ = 32004.

The previous prime is 64513. The next prime is 64553. The reversal of 64516 is 61546.

64516 = T253 + T254.

The square root of 64516 is 254.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (64513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 445 + ... + 571.

264516 is an apocalyptic number.

64516 is the 254-th square number.

It is an amenable number.

64516 is a deficient number, since it is larger than the sum of its proper divisors (49283).

64516 is a wasteful number, since it uses less digits than its factorization.

64516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 129 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The cubic root of 64516 is about 40.1072123809.

The spelling of 64516 in words is "sixty-four thousand, five hundred sixteen".

Divisors: 1 2 4 127 254 508 16129 32258 64516