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20300244294 = 231141791291
BaseRepresentation
bin10010111001111111…
…010010010101000110
31221101202111020222210
4102321333102111012
5313033330304134
613154212404250
71316026141461
oct227177222506
957352436883
1020300244294
118677a60000
123b26616686
131bb695c995
14da81202d8
157dc2c72e9
hex4b9fd2546

20300244294 has 80 divisors (see below), whose sum is σ = 44944545600. Its totient is φ = 6112484400.

The previous prime is 20300244169. The next prime is 20300244319. The reversal of 20300244294 is 49244200302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15723789 + ... + 15725079.

It is an arithmetic number, because the mean of its divisors is an integer number (561806820).

Almost surely, 220300244294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300244294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22472272800).

20300244294 is an abundant number, since it is smaller than the sum of its proper divisors (24644301306).

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

20300244294 is a wasteful number, since it uses less digits than its factorization.

20300244294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20300244294 its reverse (49244200302), we get a palindrome (69544444596).

The spelling of 20300244294 in words is "twenty billion, three hundred million, two hundred forty-four thousand, two hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 121 179 242 358 363 537 726 1074 1291 1331 1969 2582 2662 3873 3938 3993 5907 7746 7986 11814 14201 14641 21659 28402 29282 42603 43318 43923 64977 85206 87846 129954 156211 231089 238249 312422 462178 468633 476498 693267 714747 937266 1386534 1429494 1718321 2541979 2620739 3436642 5083958 5154963 5241478 7625937 7862217 10309926 15251874 15724434 18901531 27961769 37803062 55923538 56704593 83885307 113409186 167770614 307579459 615158918 922738377 1845476754 3383374049 6766748098 10150122147 20300244294