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13423542204245 = 5137182291075013
BaseRepresentation
bin1100001101010110100101…
…1101101111011101010101
31202112021111201212210020212
43003111221131233131111
53224412403301013440
644314405023535205
72553550614054365
oct303255135573525
952467451783225
1013423542204245
11430598a694638
1216096a515a505
13764ab07c6914
143459baad69a5
1518429cc93465
hexc356976f755

13423542204245 has 16 divisors (see below), whose sum is σ = 16226734322160. Its totient is φ = 10659853392384.

The previous prime is 13423542204239. The next prime is 13423542204283. The reversal of 13423542204245 is 54240224532431.

It can be written as a sum of positive squares in 8 ways, for example, as 221488831876 + 13202053372369 = 470626^2 + 3633463^2 .

It is a cyclic number.

It is not a de Polignac number, because 13423542204245 - 240 = 12324030576469 is a prime.

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, 11949359 + ... + 13024371.

It is an arithmetic number, because the mean of its divisors is an integer number (1014170895135).

Almost surely, 213423542204245 is an apocalyptic number.

It is an amenable number.

13423542204245 is a deficient number, since it is larger than the sum of its proper divisors (2803192117915).

13423542204245 is a wasteful number, since it uses less digits than its factorization.

13423542204245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093384.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 13423542204245 its reverse (54240224532431), we get a palindrome (67663766736676).

The spelling of 13423542204245 in words is "thirteen trillion, four hundred twenty-three billion, five hundred forty-two million, two hundred four thousand, two hundred forty-five".

Divisors: 1 5 137 685 18229 91145 1075013 2497373 5375065 12486865 147276781 736383905 19596411977 97982059885 2684708440849 13423542204245