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271531420 = 22513576571
BaseRepresentation
bin10000001011110…
…011110110011100
3200220221020002021
4100023303312130
51024003001140
642535505524
76504656536
oct2013636634
9626836067
10271531420
1112a2aa636
1276b282a4
1344340ba4
14280c2856
1518c88b4a
hex102f3d9c

271531420 has 12 divisors (see below), whose sum is σ = 570216024. Its totient is φ = 108612560.

The previous prime is 271531339. The next prime is 271531433. The reversal of 271531420 is 24135172.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6788266 + ... + 6788305.

It is an arithmetic number, because the mean of its divisors is an integer number (47518002).

Almost surely, 2271531420 is an apocalyptic number.

271531420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271531420 is an abundant number, since it is smaller than the sum of its proper divisors (298684604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

271531420 is a wasteful number, since it uses less digits than its factorization.

271531420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13576580 (or 13576578 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 271531420 is about 16478.2104610907. The cubic root of 271531420 is about 647.5500833340.

Adding to 271531420 its reverse (24135172), we get a palindrome (295666592).

The spelling of 271531420 in words is "two hundred seventy-one million, five hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 13576571 27153142 54306284 67882855 135765710 271531420