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12541224100 = 2252361734673
BaseRepresentation
bin10111010111000001…
…11110010010100100
31012101000112012020111
423223200332102210
5201141023132400
65432241542404
7622532434366
oct135340762244
935330465214
1012541224100
115356215319
122520044a04
13124b321682
1486d864d36
154d602d3ba
hex2eb83e4a4

12541224100 has 36 divisors (see below), whose sum is σ = 27222765444. Its totient is φ = 5014958080.

The previous prime is 12541224097. The next prime is 12541224131. The reversal of 12541224100 is 142214521.

12541224100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 5936086116 + 6605137984 = 77046^2 + 81272^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 344364 + ... + 379036.

It is an arithmetic number, because the mean of its divisors is an integer number (756187929).

Almost surely, 212541224100 is an apocalyptic number.

12541224100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12541224100 is an abundant number, since it is smaller than the sum of its proper divisors (14681541344).

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

12541224100 is a wasteful number, since it uses less digits than its factorization.

12541224100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38304 (or 38297 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 12541224100 its reverse (142214521), we get a palindrome (12683438621).

The spelling of 12541224100 in words is "twelve billion, five hundred forty-one million, two hundred twenty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 3617 7234 14468 18085 34673 36170 69346 72340 90425 138692 173365 180850 346730 361700 693460 866825 1733650 3467300 125412241 250824482 501648964 627061205 1254122410 2508244820 3135306025 6270612050 12541224100