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20302141325 = 527311124461
BaseRepresentation
bin10010111010000110…
…100001011110001101
31221101220001122020012
4102322012201132031
5313034322010300
613154321203005
71316051232254
oct227206413615
957356048205
1020302141325
1186790362a4
123b27190465
131bb717529b
14da849579b
157dc54e435
hex4ba1a178d

20302141325 has 12 divisors (see below), whose sum is σ = 25519515828. Its totient is φ = 16019222400.

The previous prime is 20302141309. The next prime is 20302141361. The reversal of 20302141325 is 52314120302.

It can be written as a sum of positive squares in 6 ways, for example, as 1089132004 + 19213009321 = 33002^2 + 138611^2 .

It is not a de Polignac number, because 20302141325 - 24 = 20302141309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20302141325.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5560406 + ... + 5564055.

It is an arithmetic number, because the mean of its divisors is an integer number (2126626319).

Almost surely, 220302141325 is an apocalyptic number.

20302141325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20302141325 is a deficient number, since it is larger than the sum of its proper divisors (5217374503).

20302141325 is a wasteful number, since it uses less digits than its factorization.

20302141325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124544 (or 11124539 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20302141325 its reverse (52314120302), we get a palindrome (72616261627).

The spelling of 20302141325 in words is "twenty billion, three hundred two million, one hundred forty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 73 365 1825 11124461 55622305 278111525 812085653 4060428265 20302141325