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83275643 = 1183197463
BaseRepresentation
bin1001111011010…
…10111101111011
312210200211201002
410331222331323
5132304310033
612132515215
72030555063
oct475527573
9183624632
1083275643
1143009250
1223a7bb0b
1314339339
14b0ba3a3
15749e3e8
hex4f6af7b

83275643 has 16 divisors (see below), whose sum is σ = 92606976. Its totient is φ = 74252640.

The previous prime is 83275627. The next prime is 83275679. The reversal of 83275643 is 34657238.

It is not a de Polignac number, because 83275643 - 24 = 83275627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83275597 and 83275606.

It is not an unprimeable number, because it can be changed into a prime (83274643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179630 + ... + 180092.

It is an arithmetic number, because the mean of its divisors is an integer number (5787936).

Almost surely, 283275643 is an apocalyptic number.

83275643 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

83275643 is a deficient number, since it is larger than the sum of its proper divisors (9331333).

83275643 is a wasteful number, since it uses less digits than its factorization.

83275643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its digits is 120960, while the sum is 38.

The square root of 83275643 is about 9125.5489149968. The cubic root of 83275643 is about 436.6894148034.

The spelling of 83275643 in words is "eighty-three million, two hundred seventy-five thousand, six hundred forty-three".

Divisors: 1 11 83 197 463 913 2167 5093 16351 38429 91211 179861 422719 1003321 7570513 83275643