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85696970 = 25411971061
BaseRepresentation
bin1010001101110…
…10000111001010
312222020212010212
411012322013022
5133414300340
612300441122
72060261252
oct506720712
9188225125
1085696970
1144412447
12248491a2
13149a6488
14b54a962
1577cba65
hex51ba1ca

85696970 has 32 divisors (see below), whose sum is σ = 158968656. Its totient is φ = 33241600.

The previous prime is 85696967. The next prime is 85696991. The reversal of 85696970 is 7969658.

It can be written as a sum of positive squares in 8 ways, for example, as 47045881 + 38651089 = 6859^2 + 6217^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 80240 + ... + 81300.

Almost surely, 285696970 is an apocalyptic number.

85696970 is a deficient number, since it is larger than the sum of its proper divisors (73271686).

85696970 is a wasteful number, since it uses less digits than its factorization.

85696970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 85696970 is about 9257.2657950391. The cubic root of 85696970 is about 440.8814458427.

The spelling of 85696970 in words is "eighty-five million, six hundred ninety-six thousand, nine hundred seventy".

Divisors: 1 2 5 10 41 82 197 205 394 410 985 1061 1970 2122 5305 8077 10610 16154 40385 43501 80770 87002 209017 217505 418034 435010 1045085 2090170 8569697 17139394 42848485 85696970