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86983161 = 328994387
BaseRepresentation
bin1010010111101…
…00000111111001
320001200012110120
411023310013321
5134231430121
612344203453
72104226136
oct513640771
9201605416
1086983161
1145110811
1225169589
1315036a35
14b7a358d
157982bc6
hex52f41f9

86983161 has 4 divisors (see below), whose sum is σ = 115977552. Its totient is φ = 57988772.

The previous prime is 86983147. The next prime is 86983177. The reversal of 86983161 is 16138968.

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 86983161 - 213 = 86974969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86983261) 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, 14497191 + ... + 14497196.

It is an arithmetic number, because the mean of its divisors is an integer number (28994388).

Almost surely, 286983161 is an apocalyptic number.

It is an amenable number.

86983161 is a deficient number, since it is larger than the sum of its proper divisors (28994391).

86983161 is a wasteful number, since it uses less digits than its factorization.

86983161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28994390.

The product of its digits is 62208, while the sum is 42.

The square root of 86983161 is about 9326.4763442578. The cubic root of 86983161 is about 443.0761724279.

The spelling of 86983161 in words is "eighty-six million, nine hundred eighty-three thousand, one hundred sixty-one".

Divisors: 1 3 28994387 86983161