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130221133 = 767277657
BaseRepresentation
bin1111100001100…
…00010001001101
3100002000220210221
413300300101031
5231314034013
620531031341
73140601310
oct760602115
9302026727
10130221133
1167563079
123773b551
1320c95333
141341a977
15b67408d
hex7c3044d

130221133 has 8 divisors (see below), whose sum is σ = 151045952. Its totient is φ = 109951776.

The previous prime is 130221121. The next prime is 130221187. The reversal of 130221133 is 331122031.

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 130221133 - 225 = 96666701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221233) 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, 138360 + ... + 139297.

It is an arithmetic number, because the mean of its divisors is an integer number (18880744).

Almost surely, 2130221133 is an apocalyptic number.

It is an amenable number.

130221133 is a deficient number, since it is larger than the sum of its proper divisors (20824819).

130221133 is an equidigital number, since it uses as much as digits as its factorization.

130221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277731.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130221133 is about 11411.4474542014. The cubic root of 130221133 is about 506.8667737874.

Adding to 130221133 its reverse (331122031), we get a palindrome (461343164).

The spelling of 130221133 in words is "one hundred thirty million, two hundred twenty-one thousand, one hundred thirty-three".

Divisors: 1 7 67 469 277657 1943599 18603019 130221133