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13456204450 = 25213295313469
BaseRepresentation
bin11001000100000110…
…10110001010100010
31021201210020000022121
430202003112022202
5210024242020300
610103125054454
7654312564523
oct144203261242
937653200277
1013456204450
115785749627
12273655742a
131365a61770
149191a084a
1553b51881a
hex3220d62a2

13456204450 has 96 divisors (see below), whose sum is σ = 28411462800. Its totient is φ = 4706257920.

The previous prime is 13456204423. The next prime is 13456204457. The reversal of 13456204450 is 5440265431.

It can be written as a sum of positive squares in 24 ways, for example, as 270964521 + 13185239929 = 16461^2 + 114827^2 .

It is not an unprimeable number, because it can be changed into a prime (13456204457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 992316 + ... + 1005784.

Almost surely, 213456204450 is an apocalyptic number.

13456204450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13456204450 is an abundant number, since it is smaller than the sum of its proper divisors (14955258350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13456204450 is a wasteful number, since it uses less digits than its factorization.

13456204450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13576 (or 13571 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 13456204450 its reverse (5440265431), we get a palindrome (18896469881).

The spelling of 13456204450 in words is "thirteen billion, four hundred fifty-six million, two hundred four thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 29 50 53 58 65 106 130 145 265 290 325 377 530 650 689 725 754 1325 1378 1450 1537 1885 2650 3074 3445 3770 6890 7685 9425 13469 15370 17225 18850 19981 26938 34450 38425 39962 67345 76850 99905 134690 175097 199810 336725 350194 390601 499525 673450 713857 781202 875485 999050 1427714 1750970 1953005 3569285 3906010 4377425 5077813 7138570 8754850 9280141 9765025 10155626 17846425 18560282 19530050 20701853 25389065 35692850 41403706 46400705 50778130 92801410 103509265 126945325 207018530 232003525 253890650 269124089 464007050 517546325 538248178 1035092650 1345620445 2691240890 6728102225 13456204450