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86052217 = 269931883
BaseRepresentation
bin1010010000100…
…00110101111001
312222220220110011
411020100311321
5134012132332
612312221521
72063301046
oct510206571
9188826404
1086052217
1144635339
122499a8a1
1314a9c094
14b6001cd
15784be47
hex5210d79

86052217 has 4 divisors (see below), whose sum is σ = 86086800. Its totient is φ = 86017636.

The previous prime is 86052209. The next prime is 86052221. The reversal of 86052217 is 71225068.

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 86052217 - 23 = 86052209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86052247) 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, 13243 + ... + 18640.

It is an arithmetic number, because the mean of its divisors is an integer number (21521700).

Almost surely, 286052217 is an apocalyptic number.

It is an amenable number.

86052217 is a deficient number, since it is larger than the sum of its proper divisors (34583).

86052217 is a wasteful number, since it uses less digits than its factorization.

86052217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34582.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 86052217 is about 9276.4334202322. The cubic root of 86052217 is about 441.4898138661.

The spelling of 86052217 in words is "eighty-six million, fifty-two thousand, two hundred seventeen".

Divisors: 1 2699 31883 86052217