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13124120220445 = 5134725717167047
BaseRepresentation
bin1011111011111011001010…
…0001100001001100011101
31201110122122111121000200011
42332332302201201030131
53210011144234023240
643525045415403221
72523120635150323
oct276766241411435
951418574530604
1013124120220445
1141aa9a97a0483
12157b661383511
137427a3667540
143352d4657d13
1517b5c620d6ea
hexbefb286131d

13124120220445 has 32 divisors (see below), whose sum is σ = 17322038350848. Its totient is φ = 9485026898688.

The previous prime is 13124120220439. The next prime is 13124120220469. The reversal of 13124120220445 is 54402202142131.

It is a cyclic number.

It is not a de Polignac number, because 13124120220445 - 27 = 13124120220317 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 31 ways as a sum of consecutive naturals, for example, 78481912 + ... + 78648958.

It is an arithmetic number, because the mean of its divisors is an integer number (541313698464).

Almost surely, 213124120220445 is an apocalyptic number.

It is an amenable number.

13124120220445 is a deficient number, since it is larger than the sum of its proper divisors (4197918130403).

13124120220445 is a wasteful number, since it uses less digits than its factorization.

13124120220445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192829.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 13124120220445 its reverse (54402202142131), we get a palindrome (67526322362576).

The spelling of 13124120220445 in words is "thirteen trillion, one hundred twenty-four billion, one hundred twenty million, two hundred twenty thousand, four hundred forty-five".

Divisors: 1 5 13 47 65 235 611 3055 25717 128585 167047 334321 835235 1208699 1671605 2171611 6043495 7851209 10858055 15713087 39256045 78565435 102065717 510328585 4295947699 21479738495 55847320087 201909541853 279236600435 1009547709265 2624824044089 13124120220445