Search a number
-
+
42548480 = 285132557
BaseRepresentation
bin1010001001001…
…1110100000000
32222001200112122
42202103310000
541343022410
64115543412
71024441022
oct242236400
988050478
1042548480
1122021337
12122bab68
138a79820
145918012
153b06e55
hex2893d00

42548480 has 72 divisors (see below), whose sum is σ = 109799592. Its totient is φ = 15704064.

The previous prime is 42548449. The next prime is 42548509. The reversal of 42548480 is 8484524.

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 42198016 = 592^2 + 6496^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42548480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15362 + ... + 17918.

Almost surely, 242548480 is an apocalyptic number.

42548480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42548480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54899796).

42548480 is an abundant number, since it is smaller than the sum of its proper divisors (67251112).

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

42548480 is a wasteful number, since it uses less digits than its factorization.

42548480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2577 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 42548480 is about 6522.9195917166. The cubic root of 42548480 is about 349.1092451438.

The spelling of 42548480 in words is "forty-two million, five hundred forty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 640 832 1040 1280 1664 2080 2557 3328 4160 5114 8320 10228 12785 16640 20456 25570 33241 40912 51140 66482 81824 102280 132964 163648 166205 204560 265928 327296 332410 409120 531856 654592 664820 818240 1063712 1329640 1636480 2127424 2659280 3272960 4254848 5318560 8509696 10637120 21274240 42548480