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80832613 is a prime number
BaseRepresentation
bin1001101000101…
…10100001100101
312122002201111111
410310112201211
5131143120423
612004305021
72001031411
oct464264145
9178081444
1080832613
114169a814
12230a2171
1313992364
14aa41d41
15716a60d
hex4d16865

80832613 has 2 divisors, whose sum is σ = 80832614. Its totient is φ = 80832612.

The previous prime is 80832611. The next prime is 80832643. The reversal of 80832613 is 31623808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57183844 + 23648769 = 7562^2 + 4863^2 .

It is a cyclic number.

It is not a de Polignac number, because 80832613 - 21 = 80832611 is a prime.

It is a super-2 number, since 2×808326132 = 13067822648815538, which contains 22 as substring.

Together with 80832611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80832611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40416306 + 40416307.

It is an arithmetic number, because the mean of its divisors is an integer number (40416307).

Almost surely, 280832613 is an apocalyptic number.

It is an amenable number.

80832613 is a deficient number, since it is larger than the sum of its proper divisors (1).

80832613 is an equidigital number, since it uses as much as digits as its factorization.

80832613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 80832613 is about 8990.6959129981. The cubic root of 80832613 is about 432.3766237905.

The spelling of 80832613 in words is "eighty million, eight hundred thirty-two thousand, six hundred thirteen".