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868133474742 = 23144688912457
BaseRepresentation
bin11001010001000001100…
…10011001000110110110
310001222210201021212120010
430220200302121012312
5103210414132142432
61502452013121050
7116502104532042
oct14504062310666
93058721255503
10868133474742
1130519a794806
12120300189186
1363b317b0bc1
1430037109022
15178aeb083cc
hexca20c991b6

868133474742 has 8 divisors (see below), whose sum is σ = 1736266949496. Its totient is φ = 289377824912.

The previous prime is 868133474723. The next prime is 868133474743. The reversal of 868133474742 is 247474331868.

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

868133474742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868133474743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72344456223 + ... + 72344456234.

It is an arithmetic number, because the mean of its divisors is an integer number (217033368687).

Almost surely, 2868133474742 is an apocalyptic number.

868133474742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

868133474742 is a wasteful number, since it uses less digits than its factorization.

868133474742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144688912462.

The product of its digits is 21676032, while the sum is 57.

The spelling of 868133474742 in words is "eight hundred sixty-eight billion, one hundred thirty-three million, four hundred seventy-four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 144688912457 289377824914 434066737371 868133474742