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130240215 = 3257413461
BaseRepresentation
bin1111100001101…
…00111011010111
3100002001212222200
413300310323113
5231320141330
620531255543
73141011040
oct760647327
9302055880
10130240215
1167576446
123774a5b3
1320ca0c21
14134238c7
15b679a60
hex7c34ed7

130240215 has 24 divisors (see below), whose sum is σ = 258000288. Its totient is φ = 59538240.

The previous prime is 130240183. The next prime is 130240219. The reversal of 130240215 is 512042031.

It is not a de Polignac number, because 130240215 - 25 = 130240183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130240219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206416 + ... + 207045.

It is an arithmetic number, because the mean of its divisors is an integer number (10750012).

Almost surely, 2130240215 is an apocalyptic number.

130240215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130240215 is a deficient number, since it is larger than the sum of its proper divisors (127760073).

130240215 is a wasteful number, since it uses less digits than its factorization.

130240215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413479 (or 413476 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 130240215 is about 11412.2835138284. The cubic root of 130240215 is about 506.8915305458.

Adding to 130240215 its reverse (512042031), we get a palindrome (642282246).

The spelling of 130240215 in words is "one hundred thirty million, two hundred forty thousand, two hundred fifteen".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 413461 1240383 2067305 2894227 3721149 6201915 8682681 14471135 18605745 26048043 43413405 130240215