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64938 = 2379137
BaseRepresentation
bin1111110110101010
310022002010
433312222
54034223
61220350
7360216
oct176652
9108063
1064938
1144875
12316b6
1323733
1419946
1514393
hexfdaa

64938 has 16 divisors (see below), whose sum is σ = 132480. Its totient is φ = 21216.

The previous prime is 64937. The next prime is 64951. The reversal of 64938 is 83946.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (64937) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 406 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (8280).

264938 is an apocalyptic number.

64938 is an abundant number, since it is smaller than the sum of its proper divisors (67542).

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 (66240).

64938 is a wasteful number, since it uses less digits than its factorization.

64938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its digits is 5184, while the sum is 30.

The square root of 64938 is about 254.8293546670. The cubic root of 64938 is about 40.1944696731.

The spelling of 64938 in words is "sixty-four thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 79 137 158 237 274 411 474 822 10823 21646 32469 64938