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20301426057 = 311615194729
BaseRepresentation
bin10010111010000011…
…110010110110001001
31221101211201022001210
4102322003302312021
5313034131113212
613154254003333
71316042163033
oct227203626611
957354638053
1020301426057
118678697970
123b26aa6549
131bb6c84853
14da834ac53
157dc45c53c
hex4ba0f2d89

20301426057 has 8 divisors (see below), whose sum is σ = 29529347040. Its totient is φ = 12303894560.

The previous prime is 20301426037. The next prime is 20301426059. The reversal of 20301426057 is 75062410302.

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 20301426057 - 210 = 20301425033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20301426059) 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 7 ways as a sum of consecutive naturals, for example, 307597332 + ... + 307597397.

It is an arithmetic number, because the mean of its divisors is an integer number (3691168380).

Almost surely, 220301426057 is an apocalyptic number.

It is an amenable number.

20301426057 is a deficient number, since it is larger than the sum of its proper divisors (9227920983).

20301426057 is a wasteful number, since it uses less digits than its factorization.

20301426057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615194743.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 20301426057 its reverse (75062410302), we get a palindrome (95363836359).

The spelling of 20301426057 in words is "twenty billion, three hundred one million, four hundred twenty-six thousand, fifty-seven".

Divisors: 1 3 11 33 615194729 1845584187 6767142019 20301426057