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20600408043072 = 263211131731677701
BaseRepresentation
bin1001010111100011010000…
…00000001110111001000000
32200221101020212010022000100
410223301220000032321000
510200004113424334242
6111451410302122400
74224221213130564
oct453615000167100
980841225108010
1020600408043072
11662264731a410
1223885b6b80400
13b657c163a740
145130ca79b6a4
1525ace595554c
hex12bc6800ee40

20600408043072 has 1344 divisors, whose sum is σ = 76040619153408. Its totient is φ = 5233213440000.

The previous prime is 20600408043071. The next prime is 20600408043133. The reversal of 20600408043072 is 27034080400602.

20600408043072 is a `hidden beast` number, since 2 + 0 + 600 + 4 + 0 + 8 + 0 + 43 + 0 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20600408043071) 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 191 ways as a sum of consecutive naturals, for example, 29387172322 + ... + 29387173022.

It is an arithmetic number, because the mean of its divisors is an integer number (56577841632).

Almost surely, 220600408043072 is an apocalyptic number.

20600408043072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20600408043072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38020309576704).

20600408043072 is an abundant number, since it is smaller than the sum of its proper divisors (55440211110336).

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

20600408043072 is a wasteful number, since it uses less digits than its factorization.

20600408043072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

Adding to 20600408043072 its reverse (27034080400602), we get a palindrome (47634488443674).

The spelling of 20600408043072 in words is "twenty trillion, six hundred billion, four hundred eight million, forty-three thousand, seventy-two".