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85695140 = 2255972623
BaseRepresentation
bin1010001101110…
…01101010100100
312222020202122002
411012321222210
5133414221030
612300424432
72060253026
oct506715244
9188222562
1085695140
1144411033
1224848118
13149a56ab
14b54a016
1577cb245
hex51b9aa4

85695140 has 24 divisors (see below), whose sum is σ = 183012480. Its totient is φ = 33696608.

The previous prime is 85695133. The next prime is 85695143. The reversal of 85695140 is 4159658.

It is a junction number, because it is equal to n+sod(n) for n = 85695094 and 85695103.

It is not an unprimeable number, because it can be changed into a prime (85695143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35132 + ... + 37491.

It is an arithmetic number, because the mean of its divisors is an integer number (7625520).

Almost surely, 285695140 is an apocalyptic number.

It is an amenable number.

85695140 is an abundant number, since it is smaller than the sum of its proper divisors (97317340).

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

85695140 is a wasteful number, since it uses less digits than its factorization.

85695140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72691 (or 72689 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 85695140 is about 9257.1669532314. The cubic root of 85695140 is about 440.8783075801.

The spelling of 85695140 in words is "eighty-five million, six hundred ninety-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 72623 145246 290492 363115 726230 1452460 4284757 8569514 17139028 21423785 42847570 85695140