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131030304525 = 32522963196543
BaseRepresentation
bin111101000001000000…
…0111100011100001101
3110112012201122010201200
41322002000330130031
54121322224221100
6140110002100113
712316024132431
oct1720200743415
9415181563650
10131030304525
115062a21117a
122148994a639
13c482492493
1464b02649c1
15361d52de00
hex1e8203c70d

131030304525 has 36 divisors (see below), whose sum is σ = 234770235648. Its totient is φ = 69858888480.

The previous prime is 131030304467. The next prime is 131030304553. The reversal of 131030304525 is 525403030131.

131030304525 is a `hidden beast` number, since 1 + 3 + 103 + 0 + 30 + 4 + 525 = 666.

It is not a de Polignac number, because 131030304525 - 226 = 130963195661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 568404 + ... + 764946.

Almost surely, 2131030304525 is an apocalyptic number.

131030304525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131030304525 is a deficient number, since it is larger than the sum of its proper divisors (103739931123).

131030304525 is a wasteful number, since it uses less digits than its factorization.

131030304525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199522 (or 199514 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 131030304525 its reverse (525403030131), we get a palindrome (656433334656).

The spelling of 131030304525 in words is "one hundred thirty-one billion, thirty million, three hundred four thousand, five hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 2963 8889 14815 26667 44445 74075 133335 196543 222225 589629 666675 982715 1768887 2948145 4913575 8844435 14740725 44222175 582356909 1747070727 2911784545 5241212181 8735353635 14558922725 26206060905 43676768175 131030304525