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130215237 = 367647837
BaseRepresentation
bin1111100001011…
…10110101000101
3100002000121201120
413300232311011
5231313341422
620530544153
73140545155
oct760566505
9302017646
10130215237
11675596a9
1237738059
1320c92749
1413418765
15b67245c
hex7c2ed45

130215237 has 8 divisors (see below), whose sum is σ = 176211936. Its totient is φ = 85514352.

The previous prime is 130215233. The next prime is 130215263. The reversal of 130215237 is 732512031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130215237 - 22 = 130215233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130215233) 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, 323718 + ... + 324119.

It is an arithmetic number, because the mean of its divisors is an integer number (22026492).

Almost surely, 2130215237 is an apocalyptic number.

It is an amenable number.

130215237 is a deficient number, since it is larger than the sum of its proper divisors (45996699).

130215237 is an equidigital number, since it uses as much as digits as its factorization.

130215237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647907.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 130215237 is about 11411.1891141984. The cubic root of 130215237 is about 506.8591238984.

Adding to 130215237 its reverse (732512031), we get a palindrome (862727268).

The spelling of 130215237 in words is "one hundred thirty million, two hundred fifteen thousand, two hundred thirty-seven".

Divisors: 1 3 67 201 647837 1943511 43405079 130215237