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105130231 is a prime number
BaseRepresentation
bin1100100010000…
…10100011110111
321022211011120021
412101002203313
5203403131411
614233150011
72414410063
oct621024367
9238734507
10105130231
1154385998
122b25b307
1318a1b94b
14dd68aa3
159369a71
hex64428f7

105130231 has 2 divisors, whose sum is σ = 105130232. Its totient is φ = 105130230.

The previous prime is 105130189. The next prime is 105130241. The reversal of 105130231 is 132031501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105130231 - 217 = 104999159 is a prime.

It is a super-2 number, since 2×1051302312 = 22104730940226722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105130241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52565115 + 52565116.

It is an arithmetic number, because the mean of its divisors is an integer number (52565116).

Almost surely, 2105130231 is an apocalyptic number.

105130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

105130231 is an equidigital number, since it uses as much as digits as its factorization.

105130231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 105130231 is about 10253.3034188987. The cubic root of 105130231 is about 471.9643618956.

Adding to 105130231 its reverse (132031501), we get a palindrome (237161732).

The spelling of 105130231 in words is "one hundred five million, one hundred thirty thousand, two hundred thirty-one".