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130406525 = 5210195119
BaseRepresentation
bin1111100010111…
…01100001111101
3100002101100010022
413301131201331
5231341002100
620535021525
73142302644
oct761354175
9302340108
10130406525
116767a397
123780a8a5
132102b832
141346835b
15b6ade85
hex7c5d87d

130406525 has 12 divisors (see below), whose sum is σ = 161894400. Its totient is φ = 104202480.

The previous prime is 130406503. The next prime is 130406561. The reversal of 130406525 is 525604031.

It is not a de Polignac number, because 130406525 - 222 = 126212221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130406494 and 130406503.

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, 22916 + ... + 28034.

It is an arithmetic number, because the mean of its divisors is an integer number (13491200).

Almost surely, 2130406525 is an apocalyptic number.

It is an amenable number.

130406525 is a deficient number, since it is larger than the sum of its proper divisors (31487875).

130406525 is a wasteful number, since it uses less digits than its factorization.

130406525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148 (or 6143 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 130406525 is about 11419.5676362987. The cubic root of 130406525 is about 507.1071968389.

The spelling of 130406525 in words is "one hundred thirty million, four hundred six thousand, five hundred twenty-five".

Divisors: 1 5 25 1019 5095 5119 25475 25595 127975 5216261 26081305 130406525