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26490049043 = 172970176651
BaseRepresentation
bin11000101010111011…
…100001001000010011
32112101010200220211112
4120222323201020103
5413222423032133
620100325403535
71625306462453
oct305273411023
975333626745
1026490049043
1110263a3aa17
1251735695ab
132662153343
1413d4219d63
15a50903648
hex62aee1213

26490049043 has 16 divisors (see below), whose sum is σ = 29057240160. Its totient is φ = 24037440000.

The previous prime is 26490049031. The next prime is 26490049051. The reversal of 26490049043 is 34094009462.

It is a cyclic number.

It is not a de Polignac number, because 26490049043 - 28 = 26490048787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26490049063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307268 + ... + 383918.

It is an arithmetic number, because the mean of its divisors is an integer number (1816077510).

Almost surely, 226490049043 is an apocalyptic number.

26490049043 is a deficient number, since it is larger than the sum of its proper divisors (2567191117).

26490049043 is a wasteful number, since it uses less digits than its factorization.

26490049043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77398.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 26490049043 in words is "twenty-six billion, four hundred ninety million, forty-nine thousand, forty-three".

Divisors: 1 17 29 493 701 11917 20329 76651 345593 1303067 2222879 37788943 53732351 913449967 1558238179 26490049043