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85769157 = 3311098461
BaseRepresentation
bin1010001110010…
…11101111000101
312222101112011110
411013023233011
5133424103112
612302155233
72061011565
oct507135705
9188345143
1085769157
1144461701
1224882b19
1314a002a6
14b568da5
1577e313c
hex51cbbc5

85769157 has 16 divisors (see below), whose sum is σ = 119144960. Its totient is φ = 54820800.

The previous prime is 85769141. The next prime is 85769161. The reversal of 85769157 is 75196758.

It is not a de Polignac number, because 85769157 - 24 = 85769141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85769197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5907 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (7446560).

Almost surely, 285769157 is an apocalyptic number.

It is an amenable number.

85769157 is a deficient number, since it is larger than the sum of its proper divisors (33375803).

85769157 is a wasteful number, since it uses less digits than its factorization.

85769157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604.

The product of its digits is 529200, while the sum is 48.

The square root of 85769157 is about 9261.1639117338. The cubic root of 85769157 is about 441.0052035318.

The spelling of 85769157 in words is "eighty-five million, seven hundred sixty-nine thousand, one hundred fifty-seven".

Divisors: 1 3 31 93 109 327 3379 8461 10137 25383 262291 786873 922249 2766747 28589719 85769157