Search a number
-
+
388078118008106 = 2203897951652349
BaseRepresentation
bin101100000111101000111101…
…0010111100111010100101010
31212220001220110021222222210212
41120033101322113213110222
5401331232441202224411
63453212343132541122
7144512501353003511
oct13017217227472452
91786056407888725
10388078118008106
11102721007492579
12376381806217a2
13138707c00c6006
146bb911c8a7678
152ecec0837968b
hex160f47a5e752a

388078118008106 has 8 divisors (see below), whose sum is σ = 582120032580900. Its totient is φ = 194038107147808.

The previous prime is 388078118008103. The next prime is 388078118008151. The reversal of 388078118008106 is 601800811870883.

It can be written as a sum of positive squares in 2 ways, for example, as 306626680756081 + 81451437252025 = 17510759^2 + 9025045^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (388078118008103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475418381 + ... + 476233968.

Almost surely, 2388078118008106 is an apocalyptic number.

388078118008106 is a deficient number, since it is larger than the sum of its proper divisors (194041914572794).

388078118008106 is a wasteful number, since it uses less digits than its factorization.

388078118008106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951856248.

The product of its (nonzero) digits is 4128768, while the sum is 59.

Adding to 388078118008106 its reverse (601800811870883), we get a palindrome (989878929878989).

The spelling of 388078118008106 in words is "three hundred eighty-eight trillion, seventy-eight billion, one hundred eighteen million, eight thousand, one hundred six".

Divisors: 1 2 203897 407794 951652349 1903304698 194039059004053 388078118008106