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103130431325 = 5225716051429
BaseRepresentation
bin110000000001100001…
…1010111111101011101
3100212012100002201201122
41200003003113331131
53142202342300300
6115213311020325
710310445126305
oct1400303277535
9325170081648
10103130431325
113a812492529
1217ba220a6a5
139957230b7c
144dc4ada605
152a38e94c85
hex18030d7f5d

103130431325 has 12 divisors (see below), whose sum is σ = 128379337140. Its totient is φ = 82183311360.

The previous prime is 103130431321. The next prime is 103130431343. The reversal of 103130431325 is 523134031301.

It can be written as a sum of positive squares in 6 ways, for example, as 4289988004 + 98840443321 = 65498^2 + 314389^2 .

It is not a de Polignac number, because 103130431325 - 22 = 103130431321 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103130431294 and 103130431303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103130431321) 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 in 11 ways as a sum of consecutive naturals, for example, 8019290 + ... + 8032139.

It is an arithmetic number, because the mean of its divisors is an integer number (10698278095).

Almost surely, 2103130431325 is an apocalyptic number.

It is an amenable number.

103130431325 is a deficient number, since it is larger than the sum of its proper divisors (25248905815).

103130431325 is a wasteful number, since it uses less digits than its factorization.

103130431325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16051696 (or 16051691 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 103130431325 its reverse (523134031301), we get a palindrome (626264462626).

The spelling of 103130431325 in words is "one hundred three billion, one hundred thirty million, four hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 257 1285 6425 16051429 80257145 401285725 4125217253 20626086265 103130431325