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271243401 = 311213229251
BaseRepresentation
bin10000001010101…
…101100010001001
3200220101120222220
4100022231202021
51023414242101
642525404253
76502350042
oct2012554211
9626346886
10271243401
1112a123200
1276a09689
134426ca70
14280498c9
1518c2d636
hex102ad889

271243401 has 48 divisors (see below), whose sum is σ = 431686080. Its totient is φ = 150480000.

The previous prime is 271243391. The next prime is 271243417. The reversal of 271243401 is 104342172.

It is a happy number.

It is not a de Polignac number, because 271243401 - 29 = 271242889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (271243451) 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 47 ways as a sum of consecutive naturals, for example, 1080526 + ... + 1080776.

It is an arithmetic number, because the mean of its divisors is an integer number (8993460).

Almost surely, 2271243401 is an apocalyptic number.

It is an amenable number.

271243401 is a deficient number, since it is larger than the sum of its proper divisors (160442679).

271243401 is a wasteful number, since it uses less digits than its factorization.

271243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 271243401 is about 16469.4687528165. The cubic root of 271243401 is about 647.3210457390.

Adding to 271243401 its reverse (104342172), we get a palindrome (375585573).

The spelling of 271243401 in words is "two hundred seventy-one million, two hundred forty-three thousand, four hundred one".

Divisors: 1 3 11 13 33 39 121 143 229 251 363 429 687 753 1573 2519 2761 2977 3263 4719 7557 8283 8931 9789 27709 30371 32747 35893 57479 83127 91113 98241 107679 172437 360217 394823 632269 747227 1080651 1184469 1896807 2241681 6954959 8219497 20864877 24658491 90414467 271243401