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26475042847 = 1121420715401
BaseRepresentation
bin11000101010000010…
…010001100000011111
32112100002110112012111
4120222002101200133
5413210102332342
620055032014451
71625035102561
oct305202214037
975302415174
1026475042847
1110256520600
12516a531427
13265bccac36
1413d2231331
15a4e43c217
hex62a09181f

26475042847 has 12 divisors (see below), whose sum is σ = 29104604928. Its totient is φ = 24064964000.

The previous prime is 26475042829. The next prime is 26475042851. The reversal of 26475042847 is 74824057462.

It is a de Polignac number, because none of the positive numbers 2k-26475042847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26475042847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26475042047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1711347 + ... + 1726747.

It is an arithmetic number, because the mean of its divisors is an integer number (2425383744).

Almost surely, 226475042847 is an apocalyptic number.

26475042847 is a deficient number, since it is larger than the sum of its proper divisors (2629562081).

26475042847 is a wasteful number, since it uses less digits than its factorization.

26475042847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29630 (or 29619 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 49.

The spelling of 26475042847 in words is "twenty-six billion, four hundred seventy-five million, forty-two thousand, eight hundred forty-seven".

Divisors: 1 11 121 14207 15401 156277 169411 1719047 1863521 218802007 2406822077 26475042847