Search a number
-
+
18428972513298 = 233071495418883
BaseRepresentation
bin1000011000010110101000…
…10111000011100000010010
32102020210101210002012021120
410030023110113003200102
54403420013430411143
6103110053022503110
73611310055512414
oct414132427034022
972223353065246
1018428972513298
1159657575a5716
1220977a9734a96
13a38ac99108b9
14479d777549b4
1521e5a70ba383
hex10c2d45c3812

18428972513298 has 8 divisors (see below), whose sum is σ = 36857945026608. Its totient is φ = 6142990837764.

The previous prime is 18428972513297. The next prime is 18428972513377. The reversal of 18428972513298 is 89231527982481.

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

18428972513298 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18428972513297) 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, 1535747709436 + ... + 1535747709447.

It is an arithmetic number, because the mean of its divisors is an integer number (4607243128326).

Almost surely, 218428972513298 is an apocalyptic number.

18428972513298 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.

18428972513298 is a wasteful number, since it uses less digits than its factorization.

18428972513298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071495418888.

The product of its digits is 139345920, while the sum is 69.

The spelling of 18428972513298 in words is "eighteen trillion, four hundred twenty-eight billion, nine hundred seventy-two million, five hundred thirteen thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 3071495418883 6142990837766 9214486256649 18428972513298