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85254877 = 521163637
BaseRepresentation
bin1010001010011…
…10001011011101
312221102101201001
411011032023131
5133311124002
612243150301
72053440331
oct505161335
9187371631
1085254877
1144140284
1224675391
1314880196
14b4737c1
157740a87
hex514e2dd

85254877 has 4 divisors (see below), whose sum is σ = 85419036. Its totient is φ = 85090720.

The previous prime is 85254863. The next prime is 85254893. The reversal of 85254877 is 77845258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77845258 = 238922629.

It can be written as a sum of positive squares in 2 ways, for example, as 40819321 + 44435556 = 6389^2 + 6666^2 .

It is a cyclic number.

It is not a de Polignac number, because 85254877 - 27 = 85254749 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 (85254857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81298 + ... + 82339.

It is an arithmetic number, because the mean of its divisors is an integer number (21354759).

Almost surely, 285254877 is an apocalyptic number.

It is an amenable number.

85254877 is a deficient number, since it is larger than the sum of its proper divisors (164159).

85254877 is a wasteful number, since it uses less digits than its factorization.

85254877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164158.

The product of its digits is 627200, while the sum is 46.

The square root of 85254877 is about 9233.3567568897. The cubic root of 85254877 is about 440.1219995720.

The spelling of 85254877 in words is "eighty-five million, two hundred fifty-four thousand, eight hundred seventy-seven".

Divisors: 1 521 163637 85254877