Search a number
-
+
38873084450 = 252278832
BaseRepresentation
bin100100001101000001…
…000011001000100010
310201100010120021222112
4210031001003020202
51114103002200300
625505201035322
72544211523504
oct441501031042
9121303507875
1038873084450
111553892a782
12764a625b42
133886769825
141c4aa63d74
151027ad5e35
hex90d043222

38873084450 has 18 divisors (see below), whose sum is σ = 72306530289. Its totient is φ = 15548676120.

The previous prime is 38873084429. The next prime is 38873084479. The reversal of 38873084450 is 5448037883.

It can be written as a sum of positive squares in 2 ways, for example, as 38095622761 + 777461689 = 195181^2 + 27883^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=139415.

It is a super-2 number, since 2×388730844502 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1380209 + ... + 1408091.

Almost surely, 238873084450 is an apocalyptic number.

38873084450 is a deficient number, since it is larger than the sum of its proper divisors (33433445839).

38873084450 is an frugal number, since it uses more digits than its factorization.

38873084450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55778 (or 27890 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

Multiplying 38873084450 by its sum of digits (50), we get a square (1943654222500 = 13941502).

38873084450 divided by its sum of digits (50) gives a square (777461689 = 278832).

The spelling of 38873084450 in words is "thirty-eight billion, eight hundred seventy-three million, eighty-four thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 27883 55766 139415 278830 697075 1394150 777461689 1554923378 3887308445 7774616890 19436542225 38873084450