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64483875 = 325331432
BaseRepresentation
bin1111010111111…
…1001000100011
311111100010020200
43311333020203
5113001441000
610222040243
71412050431
oct365771043
9144303220
1064483875
1133443765
1219719083
1310489b51
1487c7d51
1559db500
hex3d7f223

64483875 has 72 divisors (see below), whose sum is σ = 122848128. Its totient is φ = 32508000.

The previous prime is 64483841. The next prime is 64483879. The reversal of 64483875 is 57838446.

It is not a de Polignac number, because 64483875 - 28 = 64483619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64483875.

It is not an unprimeable number, because it can be changed into a prime (64483879) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1499604 + ... + 1499646.

It is an arithmetic number, because the mean of its divisors is an integer number (1706224).

Almost surely, 264483875 is an apocalyptic number.

64483875 is a deficient number, since it is larger than the sum of its proper divisors (58364253).

64483875 is a wasteful number, since it uses less digits than its factorization.

64483875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 82 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 64483875 is about 8030.1852407027. The cubic root of 64483875 is about 401.0055430067.

The spelling of 64483875 in words is "sixty-four million, four hundred eighty-three thousand, eight hundred seventy-five".

Divisors: 1 3 5 9 15 25 31 43 45 75 93 125 129 155 215 225 279 375 387 465 645 775 1075 1125 1333 1395 1849 1935 2325 3225 3875 3999 5375 5547 6665 6975 9245 9675 11625 11997 16125 16641 19995 27735 33325 34875 46225 48375 57319 59985 83205 99975 138675 166625 171957 231125 286595 299925 416025 499875 515871 693375 859785 1432975 1499625 2080125 2579355 4298925 7164875 12896775 21494625 64483875