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12230325520520 = 2351734180142281
BaseRepresentation
bin1011000111111001100000…
…1101010100100010001000
31121022012121102011211212112
42301332120031110202020
53100340201313124040
642002311201201452
72401416603435542
oct261763015244210
947265542154775
1012230325520520
113995940a04458
12145639b330288
136a9412668a33
14303d45442692
1516321386e365
hexb1f98354888

12230325520520 has 64 divisors (see below), whose sum is σ = 27678614088240. Its totient is φ = 4863620608000.

The previous prime is 12230325520493. The next prime is 12230325520529. The reversal of 12230325520520 is 2502552303221.

It can be written as a sum of positive squares in 8 ways, for example, as 7596561266596 + 4633764253924 = 2756186^2 + 2152618^2 .

It is not an unprimeable number, because it can be changed into a prime (12230325520529) by changing a digit.

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, 289241780 + ... + 289284060.

Almost surely, 212230325520520 is an apocalyptic number.

12230325520520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230325520520 is an abundant number, since it is smaller than the sum of its proper divisors (15448288567720).

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

12230325520520 is a wasteful number, since it uses less digits than its factorization.

12230325520520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84266 (or 84262 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 12230325520520 its reverse (2502552303221), we get a palindrome (14732877823741).

The spelling of 12230325520520 in words is "twelve trillion, two hundred thirty billion, three hundred twenty-five million, five hundred twenty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 173 346 692 865 1384 1730 3460 6920 41801 42281 83602 84562 167204 169124 209005 211405 334408 338248 418010 422810 836020 845620 1672040 1691240 7231573 7314613 14463146 14629226 28926292 29258452 36157865 36573065 57852584 58516904 72315730 73146130 144631460 146292260 289262920 292584520 1767388081 3534776162 7069552324 8836940405 14139104648 17673880810 35347761620 70695523240 305758138013 611516276026 1223032552052 1528790690065 2446065104104 3057581380130 6115162760260 12230325520520