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80358143 is a prime number
BaseRepresentation
bin1001100101000…
…10101011111111
312121012121122112
410302202223333
5131032430033
611550204235
71664014205
oct462425377
9177177575
1080358143
11413a6298
1222ab367b
13138573c8
14a95b075
1570c4c48
hex4ca2aff

80358143 has 2 divisors, whose sum is σ = 80358144. Its totient is φ = 80358142.

The previous prime is 80358137. The next prime is 80358211. The reversal of 80358143 is 34185308.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80358143 - 24 = 80358127 is a prime.

It is a super-2 number, since 2×803581432 = 12914862292816898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80351143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40179071 + 40179072.

It is an arithmetic number, because the mean of its divisors is an integer number (40179072).

Almost surely, 280358143 is an apocalyptic number.

80358143 is a deficient number, since it is larger than the sum of its proper divisors (1).

80358143 is an equidigital number, since it uses as much as digits as its factorization.

80358143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 80358143 is about 8964.2703551377. The cubic root of 80358143 is about 431.5289772856.

The spelling of 80358143 in words is "eighty million, three hundred fifty-eight thousand, one hundred forty-three".