Search a number
-
+
85191027 = 328397009
BaseRepresentation
bin1010001001111…
…10100101110011
312221022011010020
411010332211303
5133302103102
612241534523
72053053225
oct504764563
9187264106
1085191027
11440a7309
1224644443
131485a0bc
14b458415
15772bbbc
hex513e973

85191027 has 4 divisors (see below), whose sum is σ = 113588040. Its totient is φ = 56794016.

The previous prime is 85191017. The next prime is 85191037. The reversal of 85191027 is 72019158.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85191017) and next prime (85191037).

It is a cyclic number.

It is not a de Polignac number, because 85191027 - 28 = 85190771 is a prime.

It is a super-2 number, since 2×851910272 = 14515022162629458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85191017) 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, 14198502 + ... + 14198507.

It is an arithmetic number, because the mean of its divisors is an integer number (28397010).

Almost surely, 285191027 is an apocalyptic number.

85191027 is a deficient number, since it is larger than the sum of its proper divisors (28397013).

85191027 is a wasteful number, since it uses less digits than its factorization.

85191027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28397012.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 85191027 is about 9229.8985368204. The cubic root of 85191027 is about 440.0120984965.

The spelling of 85191027 in words is "eighty-five million, one hundred ninety-one thousand, twenty-seven".

Divisors: 1 3 28397009 85191027