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85279834 = 242639917
BaseRepresentation
bin1010001010101…
…00010001011010
312221110122221101
411011110101122
5133312423314
612243502014
72053603153
oct505242132
9187418841
1085279834
1144158002
122468790a
131488b653
14b47c92a
157748174
hex515445a

85279834 has 4 divisors (see below), whose sum is σ = 127919754. Its totient is φ = 42639916.

The previous prime is 85279823. The next prime is 85279849. The reversal of 85279834 is 43897258.

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

It can be written as a sum of positive squares in only one way, i.e., 84916225 + 363609 = 9215^2 + 603^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21319957 + ... + 21319960.

Almost surely, 285279834 is an apocalyptic number.

85279834 is a deficient number, since it is larger than the sum of its proper divisors (42639920).

85279834 is a wasteful number, since it uses less digits than its factorization.

85279834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42639919.

The product of its digits is 483840, while the sum is 46.

The square root of 85279834 is about 9234.7081166651. The cubic root of 85279834 is about 440.1649416046.

The spelling of 85279834 in words is "eighty-five million, two hundred seventy-nine thousand, eight hundred thirty-four".

Divisors: 1 2 42639917 85279834