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21454443530341 = 197315468236143
BaseRepresentation
bin1001110000011010000000…
…11111000100100001100101
32210222000200001120012110021
410320031000133010201211
510303002200020432331
6113344011342355141
74343014053033433
oct470150037044145
983860601505407
1021454443530341
1169218620694a8
1224a602188bab1
13bc81b7422003
145425873a3d53
1527312ca22211
hex1383407c4865

21454443530341 has 8 divisors (see below), whose sum is σ = 22892989493120. Its totient is φ = 20046834040032.

The previous prime is 21454443530327. The next prime is 21454443530363. The reversal of 21454443530341 is 14303534445412.

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

It is a cyclic number.

It is not a de Polignac number, because 21454443530341 - 219 = 21454443006053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21454443530041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7734116685 + ... + 7734119458.

It is an arithmetic number, because the mean of its divisors is an integer number (2861623686640).

Almost surely, 221454443530341 is an apocalyptic number.

It is an amenable number.

21454443530341 is a deficient number, since it is larger than the sum of its proper divisors (1438545962779).

21454443530341 is a wasteful number, since it uses less digits than its factorization.

21454443530341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468236235.

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 21454443530341 its reverse (14303534445412), we get a palindrome (35757977975753).

The spelling of 21454443530341 in words is "twenty-one trillion, four hundred fifty-four billion, four hundred forty-three million, five hundred thirty thousand, three hundred forty-one".

Divisors: 1 19 73 1387 15468236143 293896486717 1129181238439 21454443530341