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272871249 = 37443881
BaseRepresentation
bin10000010000111…
…010111101010001
3201000110021222120
4100100322331101
51024323334444
643024324453
76522240000
oct2020727521
9630407876
10272871249
11130035232
1277473729
13446bc9a1
1428350c37
1518e50b19
hex1043af51

272871249 has 40 divisors (see below), whose sum is σ = 434804832. Its totient is φ = 152127360.

The previous prime is 272871229. The next prime is 272871251. The reversal of 272871249 is 942178272.

It is not a de Polignac number, because 272871249 - 213 = 272863057 is a prime.

It is a super-3 number, since 3×2728712493 (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 272871249.

It is not an unprimeable number, because it can be changed into a prime (272871229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 309289 + ... + 310169.

Almost surely, 2272871249 is an apocalyptic number.

It is an amenable number.

272871249 is a deficient number, since it is larger than the sum of its proper divisors (161933583).

272871249 is an frugal number, since it uses more digits than its factorization.

272871249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 934 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 272871249 is about 16518.8149998721. The cubic root of 272871249 is about 648.6134142460.

The spelling of 272871249 in words is "two hundred seventy-two million, eight hundred seventy-one thousand, two hundred forty-nine".

Divisors: 1 3 7 21 43 49 129 147 301 343 881 903 1029 2107 2401 2643 6167 6321 7203 14749 18501 37883 43169 44247 103243 113649 129507 265181 302183 309729 795543 906549 1856267 2115281 5568801 6345843 12993869 38981607 90957083 272871249