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130121230 = 251737137151
BaseRepresentation
bin1111100000101…
…11111000001110
3100001211211202211
413300113320032
5231302334410
620524541034
73140004121
oct760277016
9301754684
10130121230
11674a5008
12376b177a
1320c5ba15
14133d23b8
15b65468a
hex7c17e0e

130121230 has 64 divisors (see below), whose sum is σ = 258256512. Its totient is φ = 47001600.

The previous prime is 130121227. The next prime is 130121287. The reversal of 130121230 is 32121031.

It is a self number, because there is not a number n which added to its sum of digits gives 130121230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861655 + ... + 861805.

It is an arithmetic number, because the mean of its divisors is an integer number (4035258).

Almost surely, 2130121230 is an apocalyptic number.

130121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130121230 is a deficient number, since it is larger than the sum of its proper divisors (128135282).

130121230 is a wasteful number, since it uses less digits than its factorization.

130121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 130121230 is about 11407.0692993424. The cubic root of 130121230 is about 506.7371213390.

Adding to 130121230 its reverse (32121031), we get a palindrome (162242261).

The spelling of 130121230 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 37 74 85 137 151 170 185 274 302 370 629 685 755 1258 1370 1510 2329 2567 3145 4658 5069 5134 5587 6290 10138 11174 11645 12835 20687 23290 25345 25670 27935 41374 50690 55870 86173 94979 103435 172346 189958 206870 351679 430865 474895 703358 765419 861730 949790 1530838 1758395 3516790 3827095 7654190 13012123 26024246 65060615 130121230