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86768417 = 671295051
BaseRepresentation
bin1010010101111…
…11101100100001
320001021021220002
411022333230201
5134203042132
612335425345
72102343101
oct512775441
9201237802
1086768417
1144a8443a
1225085255
1314c90078
14b749201
15793e262
hex52bfb21

86768417 has 4 divisors (see below), whose sum is σ = 88063536. Its totient is φ = 85473300.

The previous prime is 86768399. The next prime is 86768419. The reversal of 86768417 is 71486768.

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 86768417 - 210 = 86767393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86768419) 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, 647459 + ... + 647592.

It is an arithmetic number, because the mean of its divisors is an integer number (22015884).

Almost surely, 286768417 is an apocalyptic number.

It is an amenable number.

86768417 is a deficient number, since it is larger than the sum of its proper divisors (1295119).

86768417 is a wasteful number, since it uses less digits than its factorization.

86768417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295118.

The product of its digits is 451584, while the sum is 47.

The square root of 86768417 is about 9314.9566289919. The cubic root of 86768417 is about 442.7112498518.

The spelling of 86768417 in words is "eighty-six million, seven hundred sixty-eight thousand, four hundred seventeen".

Divisors: 1 67 1295051 86768417