Search a number
-
+
42888980 = 2252144449
BaseRepresentation
bin1010001110011…
…0111100010100
32222200222121202
42203212330110
541434421410
64131132032
71030356521
oct243467424
988628552
1042888980
1122234142
1212444018
138b687c4
1459a6148
153b72ca5
hex28e6f14

42888980 has 12 divisors (see below), whose sum is σ = 90066900. Its totient is φ = 17155584.

The previous prime is 42888973. The next prime is 42888991. The reversal of 42888980 is 8988824.

42888980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18957316 + 23931664 = 4354^2 + 4892^2 .

It is a congruent number.

It is an unprimeable number.

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, 1072205 + ... + 1072244.

It is an arithmetic number, because the mean of its divisors is an integer number (7505575).

Almost surely, 242888980 is an apocalyptic number.

It is an amenable number.

42888980 is an abundant number, since it is smaller than the sum of its proper divisors (47177920).

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

42888980 is a wasteful number, since it uses less digits than its factorization.

42888980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144458 (or 2144456 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 42888980 is about 6548.9678576093. The cubic root of 42888980 is about 350.0380366825.

The spelling of 42888980 in words is "forty-two million, eight hundred eighty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2144449 4288898 8577796 10722245 21444490 42888980