Search a number
-
+
29988245748 = 2234175378087
BaseRepresentation
bin11011111011011100…
…000101000011110100
32212101221011201120110
4123323130011003310
5442403442330443
621435412103020
72111064611616
oct337334050364
985357151513
1029988245748
111179964597a
12598b004a70
132a9bb0ac16
141646a68db6
15ba7aa6233
hex6fb7050f4

29988245748 has 48 divisors (see below), whose sum is σ = 71697596544. Its totient is φ = 9749775360.

The previous prime is 29988245747. The next prime is 29988245759. The reversal of 29988245748 is 84754288992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29988245741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3704161 + ... + 3712247.

It is an arithmetic number, because the mean of its divisors is an integer number (1493699928).

Almost surely, 229988245748 is an apocalyptic number.

It is an amenable number.

29988245748 is an abundant number, since it is smaller than the sum of its proper divisors (41709350796).

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

29988245748 is a wasteful number, since it uses less digits than its factorization.

29988245748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672 (or 15670 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 66.

The spelling of 29988245748 in words is "twenty-nine billion, nine hundred eighty-eight million, two hundred forty-five thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 7537 8087 15074 16174 22611 24261 30148 32348 45222 48522 90444 97044 309017 331567 618034 663134 927051 994701 1236068 1326268 1854102 1989402 3708204 3978804 60951719 121903438 182855157 243806876 365710314 731420628 2499020479 4998040958 7497061437 9996081916 14994122874 29988245748