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85783130 = 2531127583
BaseRepresentation
bin1010001110011…
…11001001011010
312222102020022222
411013033021122
5133430030010
612302344042
72061100406
oct507171132
9188366288
1085783130
1144471154
122488b022
1314a06764
14b570106
1577e7355
hex51cf25a

85783130 has 16 divisors (see below), whose sum is σ = 154911744. Its totient is φ = 34201680.

The previous prime is 85783121. The next prime is 85783133. The reversal of 85783130 is 3138758.

It is not an unprimeable number, because it can be changed into a prime (85783133) 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, 10682 + ... + 16901.

It is an arithmetic number, because the mean of its divisors is an integer number (9681984).

Almost surely, 285783130 is an apocalyptic number.

85783130 is a deficient number, since it is larger than the sum of its proper divisors (69128614).

85783130 is a wasteful number, since it uses less digits than its factorization.

85783130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27901.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 85783130 is about 9261.9182678320. The cubic root of 85783130 is about 441.0291508780.

The spelling of 85783130 in words is "eighty-five million, seven hundred eighty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 311 622 1555 3110 27583 55166 137915 275830 8578313 17156626 42891565 85783130