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13124321232055 = 511659833616447
BaseRepresentation
bin1011111011111011111010…
…0000010100010010110111
31201110200011111211110202121
42332332332200110102313
53210012102213411210
643525121400020411
72523125625550105
oct276767640242267
951420144743677
1013124321232055
1141aaaa2204480
12157b6b8761707
137428061b7117
14335313220c75
1517b5d8bb76da
hexbefbe8144b7

13124321232055 has 16 divisors (see below), whose sum is σ = 17181194747904. Its totient is φ = 9544813598880.

The previous prime is 13124321232047. The next prime is 13124321232067. The reversal of 13124321232055 is 55023212342131.

It is not a de Polignac number, because 13124321232055 - 23 = 13124321232047 is a prime.

It is a super-3 number, since 3×131243212320553 (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13124321232055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820842 + ... + 5437288.

It is an arithmetic number, because the mean of its divisors is an integer number (1073824671744).

Almost surely, 213124321232055 is an apocalyptic number.

13124321232055 is a deficient number, since it is larger than the sum of its proper divisors (4056873515849).

13124321232055 is a wasteful number, since it uses less digits than its factorization.

13124321232055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682446.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 13124321232055 its reverse (55023212342131), we get a palindrome (68147533574186).

The spelling of 13124321232055 in words is "thirteen trillion, one hundred twenty-four billion, three hundred twenty-one million, two hundred thirty-two thousand, fifty-five".

Divisors: 1 5 11 55 65983 329915 725813 3616447 3629065 18082235 39780917 198904585 238624022401 1193120112005 2624864246411 13124321232055