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85769812 = 22151211673
BaseRepresentation
bin1010001110010…
…11111001010100
312222101120001201
411013023321110
5133424113222
612302202244
72061013522
oct507137124
9188346051
1085769812
1144462147
1224883384
1314a0068b
14b569312
1577e3427
hex51cbe54

85769812 has 24 divisors (see below), whose sum is σ = 152032832. Its totient is φ = 42336000.

The previous prime is 85769773. The next prime is 85769813. The reversal of 85769812 is 21896758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85769813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127108 + ... + 127780.

Almost surely, 285769812 is an apocalyptic number.

It is an amenable number.

85769812 is a deficient number, since it is larger than the sum of its proper divisors (66263020).

85769812 is a wasteful number, since it uses less digits than its factorization.

85769812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1037 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 85769812 is about 9261.1992743921. The cubic root of 85769812 is about 441.0063261485.

The spelling of 85769812 in words is "eighty-five million, seven hundred sixty-nine thousand, eight hundred twelve".

Divisors: 1 2 4 151 211 302 422 604 673 844 1346 2692 31861 63722 101623 127444 142003 203246 284006 406492 568012 21442453 42884906 85769812