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13122311240245 = 523120419476543
BaseRepresentation
bin1011111011110100011010…
…1100110011101000110101
31201110110222102200022100111
42332331012230303220311
53204443443134141440
643524150114543021
72523025051111504
oct276750654635065
951413872608314
1013122311240245
1141aa160662919
12157b237597a71
13742575951b5c
143351a22c483b
1517b51c4ce4ea
hexbef46b33a35

13122311240245 has 16 divisors (see below), whose sum is σ = 16432782170112. Its totient is φ = 10040585779840.

The previous prime is 13122311240177. The next prime is 13122311240257. The reversal of 13122311240245 is 54204211322131.

It is not a de Polignac number, because 13122311240245 - 27 = 13122311240117 is a prime.

It is a Duffinian number.

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, 3353557 + ... + 6122986.

It is an arithmetic number, because the mean of its divisors is an integer number (1027048885632).

Almost surely, 213122311240245 is an apocalyptic number.

It is an amenable number.

13122311240245 is a deficient number, since it is larger than the sum of its proper divisors (3310470929867).

13122311240245 is a wasteful number, since it uses less digits than its factorization.

13122311240245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488612.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 13122311240245 its reverse (54204211322131), we get a palindrome (67326522562376).

The spelling of 13122311240245 in words is "thirteen trillion, one hundred twenty-two billion, three hundred eleven million, two hundred forty thousand, two hundred forty-five".

Divisors: 1 5 23 115 12041 60205 276943 1384715 9476543 47382715 217960489 1089802445 114107054263 570535271315 2624462248049 13122311240245