Search a number
-
+
28608678052883 = 64814414238243
BaseRepresentation
bin1101000000100111110100…
…00101111100010000010011
310202021221222221222201121022
412200103322011330100103
512222211033040143013
6140502351213150055
76011623466101655
oct640237205742023
9122257887881538
1028608678052883
11912a965a303a5
12326067848b32b
1312c6a2c6a2116
1470c94b50c6d5
1534929d94e008
hex1a04fa17c413

28608678052883 has 4 divisors (see below), whose sum is σ = 28613092297608. Its totient is φ = 28604263808160.

The previous prime is 28608678052853. The next prime is 28608678052951. The reversal of 28608678052883 is 38825087680682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28608678052883 is a prime.

It is a super-2 number, since 2×286086780528832 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28608678052853) 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, 2207112641 + ... + 2207125602.

It is an arithmetic number, because the mean of its divisors is an integer number (7153273074402).

Almost surely, 228608678052883 is an apocalyptic number.

28608678052883 is a deficient number, since it is larger than the sum of its proper divisors (4414244725).

28608678052883 is an equidigital number, since it uses as much as digits as its factorization.

28608678052883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414244724.

The product of its (nonzero) digits is 495452160, while the sum is 71.

The spelling of 28608678052883 in words is "twenty-eight trillion, six hundred eight billion, six hundred seventy-eight million, fifty-two thousand, eight hundred eighty-three".

Divisors: 1 6481 4414238243 28608678052883