Search a number
-
+
28387875033883 = 52379415419663
BaseRepresentation
bin1100111010001100100010…
…01101010001001100011011
310201111212001211011011212201
412131012101031101030123
512210101332002041013
6140213113150151031
75656646002311541
oct635062115211433
9121455054134781
1028387875033883
119055259428112
123225915ab2477
1312abc71509261
14701da2631d91
15343678edc3dd
hex19d19135131b

28387875033883 has 4 divisors (see below), whose sum is σ = 28387885691488. Its totient is φ = 28387864376280.

The previous prime is 28387875033853. The next prime is 28387875033887. The reversal of 28387875033883 is 38833057878382.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28387875033883 - 237 = 28250436080411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28387875033887) 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, 2528110 + ... + 7947772.

It is an arithmetic number, because the mean of its divisors is an integer number (7096971422872).

Almost surely, 228387875033883 is an apocalyptic number.

28387875033883 is a deficient number, since it is larger than the sum of its proper divisors (10657605).

28387875033883 is an equidigital number, since it uses as much as digits as its factorization.

28387875033883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657604.

The product of its (nonzero) digits is 1300561920, while the sum is 73.

The spelling of 28387875033883 in words is "twenty-eight trillion, three hundred eighty-seven billion, eight hundred seventy-five million, thirty-three thousand, eight hundred eighty-three".

Divisors: 1 5237941 5419663 28387875033883