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85587853 = 1322397227
BaseRepresentation
bin1010001100111…
…11011110001101
312222001022110111
411012133132031
5133402302403
612254240021
72056325161
oct506373615
9188038414
1085587853
114434846a
12247b6011
1314968900
14b51cca1
1577a956d
hex519f78d

85587853 has 24 divisors (see below), whose sum is σ = 98134848. Its totient is φ = 74460672.

The previous prime is 85587851. The next prime is 85587863. The reversal of 85587853 is 35878558.

It is not a de Polignac number, because 85587853 - 21 = 85587851 is a prime.

It is a super-2 number, since 2×855878532 = 14650561162299218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85587797 and 85587806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85587851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376926 + ... + 377152.

It is an arithmetic number, because the mean of its divisors is an integer number (4088952).

Almost surely, 285587853 is an apocalyptic number.

It is an amenable number.

85587853 is a deficient number, since it is larger than the sum of its proper divisors (12546995).

85587853 is a wasteful number, since it uses less digits than its factorization.

85587853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 360 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 49.

The square root of 85587853 is about 9251.3703309294. The cubic root of 85587853 is about 440.6942432166.

The spelling of 85587853 in words is "eighty-five million, five hundred eighty-seven thousand, eight hundred fifty-three".

Divisors: 1 13 23 97 169 227 299 1261 2231 2951 3887 5221 16393 22019 29003 38363 67873 286247 377039 506437 882349 3721211 6583681 85587853