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85234404 = 2237102867
BaseRepresentation
bin1010001010010…
…01001011100100
312221101100121210
411011021023210
5133310000104
612242511420
72053323543
oct505111344
9187340553
1085234404
1144126962
1224665570
1314873a78
14b46a15a
157739989
hex51492e4

85234404 has 12 divisors (see below), whose sum is σ = 198880304. Its totient is φ = 28411464.

The previous prime is 85234363. The next prime is 85234439. The reversal of 85234404 is 40443258.

It is a tau number, because it is divible by the number of its divisors (12).

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 in 3 ways as a sum of consecutive naturals, for example, 3551422 + ... + 3551445.

Almost surely, 285234404 is an apocalyptic number.

It is an amenable number.

85234404 is an abundant number, since it is smaller than the sum of its proper divisors (113645900).

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

85234404 is a wasteful number, since it uses less digits than its factorization.

85234404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102874 (or 7102872 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 85234404 is about 9232.2480469277. The cubic root of 85234404 is about 440.0867666353.

The spelling of 85234404 in words is "eighty-five million, two hundred thirty-four thousand, four hundred four".

Divisors: 1 2 3 4 6 12 7102867 14205734 21308601 28411468 42617202 85234404