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85030973 = 671269119
BaseRepresentation
bin1010001000101…
…11100000111101
312221000000120022
411010113200331
5133231442343
612234301525
72051515466
oct504274075
9187000508
1085030973
1143aa8035
12245878a5
13148022b1
14b415d6d
1576e9568
hex511783d

85030973 has 4 divisors (see below), whose sum is σ = 86300160. Its totient is φ = 83761788.

The previous prime is 85030961. The next prime is 85030997. The reversal of 85030973 is 37903058.

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 a cyclic number.

It is not a de Polignac number, because 85030973 - 216 = 84965437 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 (85030373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634493 + ... + 634626.

It is an arithmetic number, because the mean of its divisors is an integer number (21575040).

Almost surely, 285030973 is an apocalyptic number.

It is an amenable number.

85030973 is a deficient number, since it is larger than the sum of its proper divisors (1269187).

85030973 is a wasteful number, since it uses less digits than its factorization.

85030973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269186.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 85030973 is about 9221.2240510683. The cubic root of 85030973 is about 439.7363658306.

The spelling of 85030973 in words is "eighty-five million, thirty thousand, nine hundred seventy-three".

Divisors: 1 67 1269119 85030973