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80863201 is a prime number
BaseRepresentation
bin1001101000111…
…01111111100001
312122011021110101
410310131333201
5131200110301
612005102401
72001216526
oct464357741
9178137411
1080863201
11417107a1
12230b7a01
13139a3263
14aa4d14d
157174701
hex4d1dfe1

80863201 has 2 divisors, whose sum is σ = 80863202. Its totient is φ = 80863200.

The previous prime is 80863199. The next prime is 80863207. The reversal of 80863201 is 10236808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73702225 + 7160976 = 8585^2 + 2676^2 .

It is a cyclic number.

It is not a de Polignac number, because 80863201 - 21 = 80863199 is a prime.

Together with 80863199, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80863201.

It is not a weakly prime, because it can be changed into another prime (80863207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40431600 + 40431601.

It is an arithmetic number, because the mean of its divisors is an integer number (40431601).

Almost surely, 280863201 is an apocalyptic number.

It is an amenable number.

80863201 is a deficient number, since it is larger than the sum of its proper divisors (1).

80863201 is an equidigital number, since it uses as much as digits as its factorization.

80863201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 80863201 is about 8992.3968440010. The cubic root of 80863201 is about 432.4311556921.

It can be divided in two parts, 808 and 63201, that added together give a square (64009 = 2532).

The spelling of 80863201 in words is "eighty million, eight hundred sixty-three thousand, two hundred one".