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260080013 = 1024325391
BaseRepresentation
bin11111000000010…
…00000110001101
3200010101102201002
433200020012031
51013040030023
641450230045
76305433524
oct1740100615
9603342632
10260080013
11123898a66
1273125325
1341b617cb
14267814bb
1517c75b28
hexf80818d

260080013 has 4 divisors (see below), whose sum is σ = 260115648. Its totient is φ = 260044380.

The previous prime is 260080003. The next prime is 260080031. The reversal of 260080013 is 310080062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 260080013 - 216 = 260014477 is a prime.

It is a super-2 number, since 2×2600800132 = 135283226324160338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260080003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453 + ... + 22938.

It is an arithmetic number, because the mean of its divisors is an integer number (65028912).

Almost surely, 2260080013 is an apocalyptic number.

It is an amenable number.

260080013 is a deficient number, since it is larger than the sum of its proper divisors (35635).

260080013 is a wasteful number, since it uses less digits than its factorization.

260080013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35634.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 260080013 is about 16126.9964035464. The cubic root of 260080013 is about 638.3158953910.

The spelling of 260080013 in words is "two hundred sixty million, eighty thousand, thirteen".

Divisors: 1 10243 25391 260080013