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675840261 = 33712175003
BaseRepresentation
bin101000010010001…
…000000100000101
31202002201020112210
4220102020010011
52341003342021
6151021334033
722514355525
oct5022100405
91662636483
10675840261
11317548878
1216a407319
13aa0307a5
1465a89685
153e4ede76
hex28488105

675840261 has 16 divisors (see below), whose sum is σ = 926420544. Its totient is φ = 437935104.

The previous prime is 675840239. The next prime is 675840293. The reversal of 675840261 is 162048576.

It is not a de Polignac number, because 675840261 - 26 = 675840197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675840461) 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, 132586 + ... + 137588.

It is an arithmetic number, because the mean of its divisors is an integer number (57901284).

Almost surely, 2675840261 is an apocalyptic number.

It is an amenable number.

675840261 is a deficient number, since it is larger than the sum of its proper divisors (250580283).

675840261 is a wasteful number, since it uses less digits than its factorization.

675840261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 675840261 is about 25996.9279146595. The cubic root of 675840261 is about 877.5691613575.

The spelling of 675840261 in words is "six hundred seventy-five million, eight hundred forty thousand, two hundred sixty-one".

Divisors: 1 3 37 111 1217 3651 5003 15009 45029 135087 185111 555333 6088651 18265953 225280087 675840261