Search a number
-
+
125287085 = 5711325421
BaseRepresentation
bin1110111011110…
…11101010101101
322201202020120102
413131323222231
5224033141320
620233200445
73050631320
oct735735255
9281666512
10125287085
11647a3050
1235b60125
131cc58591
14128d47b7
15aeec175
hex777baad

125287085 has 16 divisors (see below), whose sum is σ = 187443072. Its totient is φ = 78100800.

The previous prime is 125287073. The next prime is 125287109. The reversal of 125287085 is 580782521.

It is a happy number.

It is not a de Polignac number, because 125287085 - 220 = 124238509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162326 + ... + 163095.

It is an arithmetic number, because the mean of its divisors is an integer number (11715192).

Almost surely, 2125287085 is an apocalyptic number.

It is an amenable number.

125287085 is a deficient number, since it is larger than the sum of its proper divisors (62155987).

125287085 is a wasteful number, since it uses less digits than its factorization.

125287085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325444.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 125287085 is about 11193.1713557865. The cubic root of 125287085 is about 500.3824873323.

The spelling of 125287085 in words is "one hundred twenty-five million, two hundred eighty-seven thousand, eighty-five".

Divisors: 1 5 7 11 35 55 77 385 325421 1627105 2277947 3579631 11389735 17898155 25057417 125287085