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12142122230 = 257295981341
BaseRepresentation
bin10110100111011101…
…00001010011110110
31011100012112201101202
423103232201103312
5144331340402410
65324503452502
7606615223160
oct132356412366
934305481352
1012142122230
115170a03167
12242a457132
1311b6735b14
14832855930
154b0e95ca5
hex2d3ba14f6

12142122230 has 32 divisors (see below), whose sum is σ = 25839397440. Its totient is φ = 4019460480.

The previous prime is 12142122221. The next prime is 12142122241. The reversal of 12142122230 is 3222124121.

It is a super-2 number, since 2×121421222302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2988641 + ... + 2992700.

It is an arithmetic number, because the mean of its divisors is an integer number (807481170).

Almost surely, 212142122230 is an apocalyptic number.

12142122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12142122230 is an abundant number, since it is smaller than the sum of its proper divisors (13697275210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12142122230 is a wasteful number, since it uses less digits than its factorization.

12142122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981384.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12142122230 its reverse (3222124121), we get a palindrome (15364246351).

The spelling of 12142122230 in words is "twelve billion, one hundred forty-two million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 5981341 11962682 29906705 41869387 59813410 83738774 173458889 209346935 346917778 418693870 867294445 1214212223 1734588890 2428424446 6071061115 12142122230