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13123345223313 = 32132931447264559
BaseRepresentation
bin1011111011111000010001…
…0101001000111010010001
31201110120122111022002110200
42332332010111020322101
53210003102334121223
643524440452445413
72523062504610423
oct276760425107221
951416574262420
1013123345223313
1141aa641287686
12157b485919869
137426abc29c60
1433525d75a813
1517b57d174a43
hexbef84548e91

13123345223313 has 48 divisors (see below), whose sum is σ = 20497998743040. Its totient is φ = 8042749448832.

The previous prime is 13123345223213. The next prime is 13123345223341. The reversal of 13123345223313 is 31332254332131.

13123345223313 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 334 + 5 + 2 + 2 + 3 + 313 = 666.

13123345223313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13123345223313 - 232 = 13119050256017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13123345223213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49472328 + ... + 49736886.

It is an arithmetic number, because the mean of its divisors is an integer number (427041640480).

Almost surely, 213123345223313 is an apocalyptic number.

13123345223313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13123345223313 is a deficient number, since it is larger than the sum of its proper divisors (7374653519727).

13123345223313 is a wasteful number, since it uses less digits than its factorization.

13123345223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266318 (or 266315 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

Adding to 13123345223313 its reverse (31332254332131), we get a palindrome (44455599555444).

The spelling of 13123345223313 in words is "thirteen trillion, one hundred twenty-three billion, three hundred forty-five million, two hundred twenty-three thousand, three hundred thirteen".

Divisors: 1 3 9 13 39 117 293 879 1447 2637 3809 4341 11427 13023 18811 34281 56433 169299 264559 423971 793677 1271913 2381031 3439267 3815739 5511623 10317801 16534869 30953403 49604607 77515787 232547361 382816873 697642083 1007705231 1148450619 3023115693 3445351857 4976619349 9069347079 14929858047 44789574141 112165343789 336496031367 1009488094101 1458149469257 4374448407771 13123345223313