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130523201 = 1071219843
BaseRepresentation
bin1111100011110…
…10000001000001
3100002121021011122
413301322001001
5231403220301
620541322025
73143300054
oct761720101
9302537148
10130523201
116774a016
1237866315
132106c983
1413498a9b
15b6d381b
hex7c7a041

130523201 has 4 divisors (see below), whose sum is σ = 131743152. Its totient is φ = 129303252.

The previous prime is 130523143. The next prime is 130523207. The reversal of 130523201 is 102325031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102325031 = 487210113.

It is a cyclic number.

It is not a de Polignac number, because 130523201 - 218 = 130261057 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 130523201.

It is not an unprimeable number, because it can be changed into a prime (130523207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609815 + ... + 610028.

It is an arithmetic number, because the mean of its divisors is an integer number (32935788).

Almost surely, 2130523201 is an apocalyptic number.

It is an amenable number.

130523201 is a deficient number, since it is larger than the sum of its proper divisors (1219951).

130523201 is a wasteful number, since it uses less digits than its factorization.

130523201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219950.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130523201 is about 11424.6750938484. The cubic root of 130523201 is about 507.2583896881.

Adding to 130523201 its reverse (102325031), we get a palindrome (232848232).

The spelling of 130523201 in words is "one hundred thirty million, five hundred twenty-three thousand, two hundred one".

Divisors: 1 107 1219843 130523201