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20302342012 = 225075585503
BaseRepresentation
bin10010111010000111…
…010010011101111100
31221101220102211112001
4102322013102131330
5313034344421022
613154325352044
71316053026331
oct227207223574
957356384461
1020302342012
118679163057
123b27268624
131bb7215734
14da8508988
157dc58db27
hex4ba1d277c

20302342012 has 6 divisors (see below), whose sum is σ = 35529098528. Its totient is φ = 10151171004.

The previous prime is 20302342001. The next prime is 20302342013. The reversal of 20302342012 is 21024320302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302342013) by changing a digit.

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 as a sum of consecutive naturals, namely, 2537792748 + ... + 2537792755.

Almost surely, 220302342012 is an apocalyptic number.

It is an amenable number.

20302342012 is a deficient number, since it is larger than the sum of its proper divisors (15226756516).

20302342012 is a wasteful number, since it uses less digits than its factorization.

20302342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075585507 (or 5075585505 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20302342012 its reverse (21024320302), we get a palindrome (41326662314).

The spelling of 20302342012 in words is "twenty billion, three hundred two million, three hundred forty-two thousand, twelve".

Divisors: 1 2 4 5075585503 10151171006 20302342012