Search a number
-
+
86730317 = 487178091
BaseRepresentation
bin1010010101101…
…10011001001101
320001012100121222
411022312121031
5134200332232
612334533125
72102124032
oct512663115
9201170558
1086730317
1144a58853
12250671a5
1314c7891b
14b739389
157932d12
hex52b664d

86730317 has 4 divisors (see below), whose sum is σ = 86908896. Its totient is φ = 86551740.

The previous prime is 86730283. The next prime is 86730341. The reversal of 86730317 is 71303768.

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 86730317 - 212 = 86726221 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 (86730377) 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, 88559 + ... + 89532.

It is an arithmetic number, because the mean of its divisors is an integer number (21727224).

Almost surely, 286730317 is an apocalyptic number.

It is an amenable number.

86730317 is a deficient number, since it is larger than the sum of its proper divisors (178579).

86730317 is a wasteful number, since it uses less digits than its factorization.

86730317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178578.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 86730317 is about 9312.9113063531. The cubic root of 86730317 is about 442.6464422155.

The spelling of 86730317 in words is "eighty-six million, seven hundred thirty thousand, three hundred seventeen".

Divisors: 1 487 178091 86730317