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271240117 = 1715955301
BaseRepresentation
bin10000001010101…
…100101110110101
3200220101102111021
4100022230232311
51023414140432
642525341141
76502334341
oct2012545665
9626342437
10271240117
1112a120795
1276a077b1
134426b415
1428048621
1518c2c697
hex102acbb5

271240117 has 4 divisors (see below), whose sum is σ = 287195436. Its totient is φ = 255284800.

The previous prime is 271240063. The next prime is 271240121. The reversal of 271240117 is 711042172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245423556 + 25816561 = 15666^2 + 5081^2 .

It is a cyclic number.

It is not a de Polignac number, because 271240117 - 223 = 262851509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 271240091 and 271240100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271240147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7977634 + ... + 7977667.

It is an arithmetic number, because the mean of its divisors is an integer number (71798859).

Almost surely, 2271240117 is an apocalyptic number.

It is an amenable number.

271240117 is a deficient number, since it is larger than the sum of its proper divisors (15955319).

271240117 is a wasteful number, since it uses less digits than its factorization.

271240117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15955318.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 271240117 is about 16469.3690528812. The cubic root of 271240117 is about 647.3184333119.

Adding to 271240117 its reverse (711042172), we get a palindrome (982282289).

The spelling of 271240117 in words is "two hundred seventy-one million, two hundred forty thousand, one hundred seventeen".

Divisors: 1 17 15955301 271240117