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85832661 = 328610887
BaseRepresentation
bin1010001110110…
…11001111010101
312222111202021110
411013123033111
5133433121121
612303405233
72061364665
oct507331725
9188452243
1085832661
11444a5392
12248b3819
1314a23175
14b5841a5
157806d76
hex51db3d5

85832661 has 4 divisors (see below), whose sum is σ = 114443552. Its totient is φ = 57221772.

The previous prime is 85832657. The next prime is 85832683. The reversal of 85832661 is 16623858.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85832661 - 22 = 85832657 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 (85832261) 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, 14305441 + ... + 14305446.

It is an arithmetic number, because the mean of its divisors is an integer number (28610888).

Almost surely, 285832661 is an apocalyptic number.

It is an amenable number.

85832661 is a deficient number, since it is larger than the sum of its proper divisors (28610891).

85832661 is a wasteful number, since it uses less digits than its factorization.

85832661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28610890.

The product of its digits is 69120, while the sum is 39.

The square root of 85832661 is about 9264.5917880930. The cubic root of 85832661 is about 441.1140176495.

The spelling of 85832661 in words is "eighty-five million, eight hundred thirty-two thousand, six hundred sixty-one".

Divisors: 1 3 28610887 85832661