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130220133 = 343406711
BaseRepresentation
bin1111100001100…
…00000001100101
3100002000212102220
413300300001211
5231314021013
620531022553
73140565351
oct760600145
9302025386
10130220133
116756234a
123773aa59
1320c94a44
141341a461
15b673b23
hex7c30065

130220133 has 4 divisors (see below), whose sum is σ = 173626848. Its totient is φ = 86813420.

The previous prime is 130220117. The next prime is 130220143. The reversal of 130220133 is 331022031.

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.

It is a cyclic number.

It is not a de Polignac number, because 130220133 - 24 = 130220117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130220143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21703353 + ... + 21703358.

It is an arithmetic number, because the mean of its divisors is an integer number (43406712).

Almost surely, 2130220133 is an apocalyptic number.

It is an amenable number.

130220133 is a deficient number, since it is larger than the sum of its proper divisors (43406715).

130220133 is an equidigital number, since it uses as much as digits as its factorization.

130220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43406714.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 130220133 is about 11411.4036384662. The cubic root of 130220133 is about 506.8654763326.

Adding to 130220133 its reverse (331022031), we get a palindrome (461242164).

The spelling of 130220133 in words is "one hundred thirty million, two hundred twenty thousand, one hundred thirty-three".

Divisors: 1 3 43406711 130220133