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26948242249601 = 157821344960617
BaseRepresentation
bin1100010000010011000000…
…11010000001011110000001
310112102020010100002100011112
412020021200122001132001
512013010000003441401
6133151503535253105
75450642364456461
oct610114032013601
9115366110070145
1026948242249601
11864a75a235452
1230328bb97a195
13120629295304a
14692432527ba1
1531aebb7303bb
hex188260681781

26948242249601 has 16 divisors (see below), whose sum is σ = 27161240619600. Its totient is φ = 26735787586560.

The previous prime is 26948242249549. The next prime is 26948242249631. The reversal of 26948242249601 is 10694224284962.

It can be written as a sum of positive squares in 8 ways, for example, as 14897284090000 + 12050958159601 = 3859700^2 + 3471449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26948242249601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26948242249631) 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, 444535445 + ... + 444596061.

It is an arithmetic number, because the mean of its divisors is an integer number (1697577538725).

Almost surely, 226948242249601 is an apocalyptic number.

It is an amenable number.

26948242249601 is a deficient number, since it is larger than the sum of its proper divisors (212998369999).

26948242249601 is a wasteful number, since it uses less digits than its factorization.

26948242249601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65044.

The product of its (nonzero) digits is 23887872, while the sum is 59.

The spelling of 26948242249601 in words is "twenty-six trillion, nine hundred forty-eight billion, two hundred forty-two million, two hundred forty-nine thousand, six hundred one".

Divisors: 1 157 821 3449 60617 128897 541493 2831629 9516869 49766557 209068033 444565753 7813349449 32823681181 171644855093 26948242249601