Search a number
-
+
64303472 = 247950873
BaseRepresentation
bin1111010101001…
…1000101110000
311110222221210002
43311103011300
5112430202342
610214125132
71410366452
oct365230560
9143887702
1064303472
1133330172
12196507a8
13104259bc
14877c2d2
1559a2d32
hex3d53170

64303472 has 20 divisors (see below), whose sum is σ = 126167520. Its totient is φ = 31744128.

The previous prime is 64303471. The next prime is 64303541. The reversal of 64303472 is 27430346.

It is a happy number.

64303472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×643034722 = 8269873022509568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64303471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24173 + ... + 26700.

It is an arithmetic number, because the mean of its divisors is an integer number (6308376).

Almost surely, 264303472 is an apocalyptic number.

It is an amenable number.

64303472 is a deficient number, since it is larger than the sum of its proper divisors (61864048).

64303472 is a wasteful number, since it uses less digits than its factorization.

64303472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50960 (or 50954 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 64303472 is about 8018.9445689567. The cubic root of 64303472 is about 400.6312366600.

The spelling of 64303472 in words is "sixty-four million, three hundred three thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 79 158 316 632 1264 50873 101746 203492 406984 813968 4018967 8037934 16075868 32151736 64303472