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130521241 = 1923329483
BaseRepresentation
bin1111100011110…
…01100010011001
3100002121011111001
413301321202121
5231403134431
620541305001
73143261254
oct761714231
9302534431
10130521241
11677485a4
1237865161
132106bb06
141349809b
15b6d2e61
hex7c79899

130521241 has 8 divisors (see below), whose sum is σ = 137985120. Its totient is φ = 123116832.

The previous prime is 130521227. The next prime is 130521247. The reversal of 130521241 is 142125031.

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 130521241 - 213 = 130513049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130521247) 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, 10315 + ... + 19168.

It is an arithmetic number, because the mean of its divisors is an integer number (17248140).

Almost surely, 2130521241 is an apocalyptic number.

It is an amenable number.

130521241 is a deficient number, since it is larger than the sum of its proper divisors (7463879).

130521241 is a wasteful number, since it uses less digits than its factorization.

130521241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29735.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130521241 is about 11424.5893142817. The cubic root of 130521241 is about 507.2558505957.

Adding to 130521241 its reverse (142125031), we get a palindrome (272646272).

The spelling of 130521241 in words is "one hundred thirty million, five hundred twenty-one thousand, two hundred forty-one".

Divisors: 1 19 233 4427 29483 560177 6869539 130521241