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20304122242 = 230738386341
BaseRepresentation
bin10010111010001110…
…000101000110000010
31221102000210021112111
4102322032011012002
5313040323402432
613154431445534
71316104122445
oct227216050602
957360707474
1020304122242
11867a169618
123b279868aa
131bb76b9b21
14da884d65c
157dc7e1347
hex4ba385182

20304122242 has 16 divisors (see below), whose sum is σ = 30635523072. Its totient is φ = 10092455280.

The previous prime is 20304122197. The next prime is 20304122309. The reversal of 20304122242 is 24222140302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191992 + ... + 278332.

It is an arithmetic number, because the mean of its divisors is an integer number (1914720192).

Almost surely, 220304122242 is an apocalyptic number.

20304122242 is a deficient number, since it is larger than the sum of its proper divisors (10331400830).

20304122242 is a wasteful number, since it uses less digits than its factorization.

20304122242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87033.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20304122242 its reverse (24222140302), we get a palindrome (44526262544).

The spelling of 20304122242 in words is "twenty billion, three hundred four million, one hundred twenty-two thousand, two hundred forty-two".

Divisors: 1 2 307 383 614 766 86341 117581 172682 235162 26506687 33068603 53013374 66137206 10152061121 20304122242