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13123053240245 = 513216279545323
BaseRepresentation
bin1011111011110111001011…
…1011010011111110110101
31201110112220010212210222222
42332331302323103332311
53210002003112141440
643524351502332125
72523052331031014
oct276756273237665
951415803783888
1013123053240245
1141aa501489463
12157b403b8a045
137426635a8200
14335232a72a7b
1517b5626eb2b5
hexbef72ed3fb5

13123053240245 has 24 divisors (see below), whose sum is σ = 17062686644256. Its totient is φ = 9684912788928.

The previous prime is 13123053240161. The next prime is 13123053240317. The reversal of 13123053240245 is 54204235032131.

It is not a de Polignac number, because 13123053240245 - 210 = 13123053239221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3397847 + ... + 6147476.

It is an arithmetic number, because the mean of its divisors is an integer number (710945276844).

Almost surely, 213123053240245 is an apocalyptic number.

It is an amenable number.

13123053240245 is a deficient number, since it is larger than the sum of its proper divisors (3939633404011).

13123053240245 is a wasteful number, since it uses less digits than its factorization.

13123053240245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9546981 (or 9546968 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 13123053240245 its reverse (54204235032131), we get a palindrome (67327288272376).

The spelling of 13123053240245 in words is "thirteen trillion, one hundred twenty-three billion, fifty-three million, two hundred forty thousand, two hundred forty-five".

Divisors: 1 5 13 65 169 845 1627 8135 21151 105755 274963 1374815 9545323 47726615 124089199 620445995 1613159587 8065797935 15530240521 77651202605 201893126773 1009465633865 2624610648049 13123053240245