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13122126404425 = 5223731027330431
BaseRepresentation
bin1011111011110011101110…
…1011101101101101001001
31201110110111112212200021101
42332330323223231231021
53204443103324420200
643524115513141401
72523020345042533
oct276747353555511
951413445780241
1013122126404425
1141aa076297a45
12157b1a56ba861
13742546576b4c
1433518592c853
1517b50b16d26a
hexbef3baedb49

13122126404425 has 48 divisors (see below), whose sum is σ = 17213719108608. Its totient is φ = 9902438092800.

The previous prime is 13122126404419. The next prime is 13122126404459. The reversal of 13122126404425 is 52440462122131.

It is not a de Polignac number, because 13122126404425 - 29 = 13122126403913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431193960 + ... + 431224390.

It is an arithmetic number, because the mean of its divisors is an integer number (358619148096).

Almost surely, 213122126404425 is an apocalyptic number.

It is an amenable number.

13122126404425 is a deficient number, since it is larger than the sum of its proper divisors (4091592704183).

13122126404425 is a wasteful number, since it uses less digits than its factorization.

13122126404425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40810 (or 40805 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 13122126404425 its reverse (52440462122131), we get a palindrome (65562588526556).

The spelling of 13122126404425 in words is "thirteen trillion, one hundred twenty-two billion, one hundred twenty-six million, four hundred four thousand, four hundred twenty-five".

Divisors: 1 5 23 25 73 115 365 575 1679 1825 8395 10273 30431 41975 51365 152155 236279 256825 699913 749929 760775 1181395 2221463 3499565 3749645 5906975 11107315 17248367 17497825 18748225 51093649 55536575 86241835 255468245 312617663 431209175 1277341225 1563088315 7190206249 7815441575 22821089399 35951031245 114105446995 179755156225 524885056177 570527234975 2624425280885 13122126404425