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80554429 is a prime number
BaseRepresentation
bin1001100110100…
…10100110111101
312121120120220101
410303102212331
5131110220204
611554321101
71665462364
oct463224675
9177516811
1080554429
114151a80a
1222b89191
13138c5857
14a9ac7db
157112ea4
hex4cd29bd

80554429 has 2 divisors, whose sum is σ = 80554430. Its totient is φ = 80554428.

The previous prime is 80554427. The next prime is 80554451. The reversal of 80554429 is 92445508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 362404 = 8955^2 + 602^2 .

It is a cyclic number.

It is not a de Polignac number, because 80554429 - 21 = 80554427 is a prime.

Together with 80554427, 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 (80554421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40277214 + 40277215.

It is an arithmetic number, because the mean of its divisors is an integer number (40277215).

Almost surely, 280554429 is an apocalyptic number.

It is an amenable number.

80554429 is a deficient number, since it is larger than the sum of its proper divisors (1).

80554429 is an equidigital number, since it uses as much as digits as its factorization.

80554429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 80554429 is about 8975.2119195036. The cubic root of 80554429 is about 431.8800482152.

The spelling of 80554429 in words is "eighty million, five hundred fifty-four thousand, four hundred twenty-nine".