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85880842 = 2160126821
BaseRepresentation
bin1010001111001…
…11000000001010
312222121012100221
411013213000022
5133441141332
612304420254
72061655315
oct507470012
9188535327
1085880842
1144528603
122491768a
1314a3c088
14b59797c
157816297
hex51e700a

85880842 has 8 divisors (see below), whose sum is σ = 128906532. Its totient is φ = 42912000.

The previous prime is 85880807. The next prime is 85880843. The reversal of 85880842 is 24808858.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60388441 + 25492401 = 7771^2 + 5049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85880843) 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 3 ways as a sum of consecutive naturals, for example, 10209 + ... + 16612.

Almost surely, 285880842 is an apocalyptic number.

85880842 is a deficient number, since it is larger than the sum of its proper divisors (43025690).

85880842 is a wasteful number, since it uses less digits than its factorization.

85880842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28424.

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 85880842 is about 9267.1916997546. The cubic root of 85880842 is about 441.1965400007.

The spelling of 85880842 in words is "eighty-five million, eight hundred eighty thousand, eight hundred forty-two".

Divisors: 1 2 1601 3202 26821 53642 42940421 85880842