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13128224908577 = 371965971804793
BaseRepresentation
bin1011111100001010011100…
…1011101010010100100001
31201111001020120021210020112
42333002213023222110201
53210043101034033302
643531005005221105
72523324436343162
oct277024713522441
951431216253215
1013128224908577
114201715788419
121580407b61795
13742ca8b8159c
143355a385d769
1517b766762552
hexbf0a72ea521

13128224908577 has 8 divisors (see below), whose sum is σ = 13483117850856. Its totient is φ = 12773335969152.

The previous prime is 13128224908571. The next prime is 13128224908681. The reversal of 13128224908577 is 77580942282131.

13128224908577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10937895948001 + 2190328960576 = 3307249^2 + 1479976^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13128224908577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13128224908571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6371693 + ... + 8176485.

It is an arithmetic number, because the mean of its divisors is an integer number (1685389731357).

Almost surely, 213128224908577 is an apocalyptic number.

It is an amenable number.

13128224908577 is a deficient number, since it is larger than the sum of its proper divisors (354892942279).

13128224908577 is a wasteful number, since it uses less digits than its factorization.

13128224908577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001427.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 13128224908577 in words is "thirteen trillion, one hundred twenty-eight billion, two hundred twenty-four million, nine hundred eight thousand, five hundred seventy-seven".

Divisors: 1 37 196597 1804793 7274089 66777341 354816889421 13128224908577