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85826838 = 2319752867
BaseRepresentation
bin1010001110110…
…01110100010110
312222111110021210
411013121310112
5133432424323
612303322250
72061342006
oct507316426
9188443253
1085826838
11444a0a79
12248b0386
1314a20616
14b582006
157805293
hex51d9d16

85826838 has 16 divisors (see below), whose sum is σ = 180688320. Its totient is φ = 27103176.

The previous prime is 85826837. The next prime is 85826843. The reversal of 85826838 is 83862858.

It is a super-2 number, since 2×858268382 = 14732492242156488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85826833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376320 + ... + 376547.

It is an arithmetic number, because the mean of its divisors is an integer number (11293020).

Almost surely, 285826838 is an apocalyptic number.

85826838 is an abundant number, since it is smaller than the sum of its proper divisors (94861482).

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

85826838 is a wasteful number, since it uses less digits than its factorization.

85826838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752891.

The product of its digits is 737280, while the sum is 48.

The square root of 85826838 is about 9264.2775217499. The cubic root of 85826838 is about 441.1040421733.

The spelling of 85826838 in words is "eighty-five million, eight hundred twenty-six thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 19 38 57 114 752867 1505734 2258601 4517202 14304473 28608946 42913419 85826838