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13030205053 = 50964139937
BaseRepresentation
bin11000010001010100…
…10010011001111101
31020122002122000000011
430020222102121331
5203141213030203
65552550303221
7640620626005
oct141052223175
936562560004
1013030205053
115587235a08
122637957b11
1312c8719108
148b878d005
15513e1b76d
hex308a9267d

13030205053 has 8 divisors (see below), whose sum is σ = 13076499960. Its totient is φ = 12983992320.

The previous prime is 13030205003. The next prime is 13030205143. The reversal of 13030205053 is 35050203031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9134198329 + 3896006724 = 95573^2 + 62418^2 .

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 13030205053 - 225 = 12996650621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030205003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306301 + ... + 346237.

It is an arithmetic number, because the mean of its divisors is an integer number (1634562495).

Almost surely, 213030205053 is an apocalyptic number.

It is an amenable number.

13030205053 is a deficient number, since it is larger than the sum of its proper divisors (46294907).

13030205053 is an equidigital number, since it uses as much as digits as its factorization.

13030205053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41087.

The product of its (nonzero) digits is 1350, while the sum is 22.

Adding to 13030205053 its reverse (35050203031), we get a palindrome (48080408084).

The spelling of 13030205053 in words is "thirteen billion, thirty million, two hundred five thousand, fifty-three".

Divisors: 1 509 641 39937 326269 20327933 25599617 13030205053