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105130125 = 32531723239
BaseRepresentation
bin1100100010000…
…10100010001101
321022211011102100
412101002202031
5203403131000
614233145313
72414406552
oct621024215
9238734370
10105130125
1154385901
122b25b239
1318a1b899
14dd68a29
159369a00
hex644288d

105130125 has 96 divisors (see below), whose sum is σ = 210263040. Its totient is φ = 50265600.

The previous prime is 105130121. The next prime is 105130139. The reversal of 105130125 is 521031501.

It is not a de Polignac number, because 105130125 - 22 = 105130121 is a prime.

It is a super-2 number, since 2×1051301252 = 22104686365031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105130098 and 105130107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105130121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 439756 + ... + 439994.

It is an arithmetic number, because the mean of its divisors is an integer number (2190240).

Almost surely, 2105130125 is an apocalyptic number.

105130125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105130125 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

105130125 is a wasteful number, since it uses less digits than its factorization.

105130125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 105130125 is about 10253.2982498316. The cubic root of 105130125 is about 471.9642032725.

Adding to 105130125 its reverse (521031501), we get a palindrome (626161626).

The spelling of 105130125 in words is "one hundred five million, one hundred thirty thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 17 23 25 45 51 69 75 85 115 125 153 207 225 239 255 345 375 391 425 575 717 765 1035 1125 1173 1195 1275 1725 1955 2125 2151 2875 3519 3585 3825 4063 5175 5497 5865 5975 6375 8625 9775 10755 12189 16491 17595 17925 19125 20315 25875 27485 29325 29875 36567 48875 49473 53775 60945 82455 87975 89625 93449 101575 137425 146625 182835 247365 268875 280347 304725 412275 439875 467245 507875 687125 841041 914175 1236825 1401735 1523625 2061375 2336225 4205205 4570875 6184125 7008675 11681125 21026025 35043375 105130125