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13011501231345 = 351612753787649
BaseRepresentation
bin1011110101010111100111…
…1010001010110011110001
31201001212221220002121122210
42331111321322022303301
53201140023303400340
643401222351522333
72512023062430201
oct275257172126361
951055856077583
1013011501231345
114167168266071
1215618715293a9
13734c966a9456
1432da8d6cc401
151786d4234180
hexbd579e8acf1

13011501231345 has 16 divisors (see below), whose sum is σ = 20819693260800. Its totient is φ = 6939036893184.

The previous prime is 13011501231331. The next prime is 13011501231353. The reversal of 13011501231345 is 54313210511031.

It is not a de Polignac number, because 13011501231345 - 235 = 12977141492977 is a prime.

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, 26651920 + ... + 27135729.

It is an arithmetic number, because the mean of its divisors is an integer number (1301230828800).

Almost surely, 213011501231345 is an apocalyptic number.

13011501231345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13011501231345 is a deficient number, since it is larger than the sum of its proper divisors (7808192029455).

13011501231345 is a wasteful number, since it uses less digits than its factorization.

13011501231345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53803784.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 13011501231345 its reverse (54313210511031), we get a palindrome (67324711742376).

The spelling of 13011501231345 in words is "thirteen trillion, eleven billion, five hundred one million, two hundred thirty-one thousand, three hundred forty-five".

Divisors: 1 3 5 15 16127 48381 80635 241905 53787649 161362947 268938245 806814735 867433415423 2602300246269 4337167077115 13011501231345