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130152231 = 3311438223
BaseRepresentation
bin1111100000111…
…11011100100111
3100001220102022000
413300133130213
5231304332411
620525340343
73140163366
oct760373447
9301812260
10130152231
1167516330
12377076b3
1320c6cb71
14133dd7dd
15b65d956
hex7c1f727

130152231 has 16 divisors (see below), whose sum is σ = 210347520. Its totient is φ = 78879960.

The previous prime is 130152227. The next prime is 130152241. The reversal of 130152231 is 132251031.

It is not a de Polignac number, because 130152231 - 22 = 130152227 is a prime.

It is a super-2 number, since 2×1301522312 = 33879206468554722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130152241) 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 15 ways as a sum of consecutive naturals, for example, 218815 + ... + 219408.

It is an arithmetic number, because the mean of its divisors is an integer number (13146720).

Almost surely, 2130152231 is an apocalyptic number.

130152231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130152231 is a deficient number, since it is larger than the sum of its proper divisors (80195289).

130152231 is a wasteful number, since it uses less digits than its factorization.

130152231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438243 (or 438237 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 130152231 is about 11408.4280687569. The cubic root of 130152231 is about 506.7773610193. Note that the first 3 decimals are identical.

The spelling of 130152231 in words is "one hundred thirty million, one hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 11 27 33 99 297 438223 1314669 3944007 4820453 11832021 14461359 43384077 130152231