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85127951 = 4779101227
BaseRepresentation
bin1010001001011…
…11001100001111
312221011221121002
411010233030033
5133243043301
612240330515
72052401306
oct504571417
9187157532
1085127951
1144063987
1224613a3b
131483748c
14b43d43d
15771816b
hex512f30f

85127951 has 16 divisors (see below), whose sum is σ = 89303040. Its totient is φ = 81088800.

The previous prime is 85127947. The next prime is 85128007. The reversal of 85127951 is 15972158.

It is a cyclic number.

It is not a de Polignac number, because 85127951 - 22 = 85127947 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 (85127921) 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, 374900 + ... + 375126.

It is an arithmetic number, because the mean of its divisors is an integer number (5581440).

Almost surely, 285127951 is an apocalyptic number.

85127951 is a deficient number, since it is larger than the sum of its proper divisors (4175089).

85127951 is a wasteful number, since it uses less digits than its factorization.

85127951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its digits is 25200, while the sum is 38.

The square root of 85127951 is about 9226.4809651351. The cubic root of 85127951 is about 439.9034757275.

The spelling of 85127951 in words is "eighty-five million, one hundred twenty-seven thousand, nine hundred fifty-one".

Divisors: 1 47 79 101 227 3713 4747 7979 10669 17933 22927 375013 842851 1077569 1811233 85127951