Search a number
-
+
48781664 = 251980233
BaseRepresentation
bin1011101000010…
…1100101100000
310101210100212022
42322011211200
544442003124
64501321012
71131431411
oct272054540
9111710768
1048781664
1125599428
1214406168
13a14c9b9
14669b808
154438c5e
hex2e85960

48781664 has 24 divisors (see below), whose sum is σ = 101094840. Its totient is φ = 23106816.

The previous prime is 48781661. The next prime is 48781669. The reversal of 48781664 is 46618784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48781661) 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 3 ways as a sum of consecutive naturals, for example, 39509 + ... + 40724.

It is an arithmetic number, because the mean of its divisors is an integer number (4212285).

Almost surely, 248781664 is an apocalyptic number.

It is an amenable number.

48781664 is an abundant number, since it is smaller than the sum of its proper divisors (52313176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48781664 is a wasteful number, since it uses less digits than its factorization.

48781664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80262 (or 80254 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 48781664 is about 6984.3871599447. The cubic root of 48781664 is about 365.3862527754.

The spelling of 48781664 in words is "forty-eight million, seven hundred eighty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 80233 160466 320932 641864 1283728 1524427 2567456 3048854 6097708 12195416 24390832 48781664