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130221201 = 3115966883
BaseRepresentation
bin1111100001100…
…00010010010001
3100002000220220110
413300300102101
5231314034301
620531031533
73140601435
oct760602221
9302026813
10130221201
1167563130
123773b5a9
1320c95386
141341a9c5
15b6740d6
hex7c30491

130221201 has 16 divisors (see below), whose sum is σ = 192625920. Its totient is φ = 77583120.

The previous prime is 130221187. The next prime is 130221209. The reversal of 130221201 is 102122031.

It is not a de Polignac number, because 130221201 - 211 = 130219153 is a prime.

It is a super-2 number, since 2×1302212012 = 33915122379764802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130221209) 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 15 ways as a sum of consecutive naturals, for example, 31495 + ... + 35388.

It is an arithmetic number, because the mean of its divisors is an integer number (12039120).

Almost surely, 2130221201 is an apocalyptic number.

130221201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130221201 is a deficient number, since it is larger than the sum of its proper divisors (62404719).

130221201 is a wasteful number, since it uses less digits than its factorization.

130221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66956.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 130221201 is about 11411.4504336653. The cubic root of 130221201 is about 506.8668620140.

Adding to 130221201 its reverse (102122031), we get a palindrome (232343232).

The spelling of 130221201 in words is "one hundred thirty million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 3 11 33 59 177 649 1947 66883 200649 735713 2207139 3946097 11838291 43407067 130221201