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80358469 is a prime number
BaseRepresentation
bin1001100101000…
…10110001000101
312121012122002121
410302202301011
5131032432334
611550205541
71664015152
oct462426105
9177178077
1080358469
11413a6564
1222ab38b1
13138575b9
14a95b229
1570c4db4
hex4ca2c45

80358469 has 2 divisors, whose sum is σ = 80358470. Its totient is φ = 80358468.

The previous prime is 80358457. The next prime is 80358491. The reversal of 80358469 is 96485308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40832100 + 39526369 = 6390^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 80358469 - 29 = 80357957 is a prime.

It is a super-2 number, since 2×803584692 = 12914967080047922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80358569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40179234 + 40179235.

It is an arithmetic number, because the mean of its divisors is an integer number (40179235).

Almost surely, 280358469 is an apocalyptic number.

It is an amenable number.

80358469 is a deficient number, since it is larger than the sum of its proper divisors (1).

80358469 is an equidigital number, since it uses as much as digits as its factorization.

80358469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 80358469 is about 8964.2885384173. The cubic root of 80358469 is about 431.5295608326.

The spelling of 80358469 in words is "eighty million, three hundred fifty-eight thousand, four hundred sixty-nine".