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85688276 = 2273293453
BaseRepresentation
bin1010001101101…
…11111111010100
312222020102012212
411012313333110
5133414011101
612300332552
72060224022
oct506677724
9188212185
1085688276
1144406963
1224844158
13149a252b
14b547712
1577c91bb
hex51b7fd4

85688276 has 12 divisors (see below), whose sum is σ = 152009172. Its totient is φ = 42257088.

The previous prime is 85688249. The next prime is 85688311. The reversal of 85688276 is 67288658.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 67404100 = 4276^2 + 8210^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146435 + ... + 147018.

It is an arithmetic number, because the mean of its divisors is an integer number (12667431).

Almost surely, 285688276 is an apocalyptic number.

It is an amenable number.

85688276 is a deficient number, since it is larger than the sum of its proper divisors (66320896).

85688276 is a wasteful number, since it uses less digits than its factorization.

85688276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293530 (or 293528 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 85688276 is about 9256.7962060315. The cubic root of 85688276 is about 440.8665361249.

The spelling of 85688276 in words is "eighty-five million, six hundred eighty-eight thousand, two hundred seventy-six".

Divisors: 1 2 4 73 146 292 293453 586906 1173812 21422069 42844138 85688276