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80429141 = 136186857
BaseRepresentation
bin1001100101101…
…00000001010101
312121100020001002
410302310001111
5131042213031
611551513045
71664431202
oct462640125
9177306032
1080429141
1141444671
1222b28785
1313880810
14a978ca9
1570daccb
hex4cb4055

80429141 has 4 divisors (see below), whose sum is σ = 86616012. Its totient is φ = 74242272.

The previous prime is 80429131. The next prime is 80429177. The reversal of 80429141 is 14192408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15288100 + 65141041 = 3910^2 + 8071^2 .

It is a de Polignac number, because none of the positive numbers 2k-80429141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80429101) 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 in 3 ways as a sum of consecutive naturals, for example, 3093416 + ... + 3093441.

It is an arithmetic number, because the mean of its divisors is an integer number (21654003).

Almost surely, 280429141 is an apocalyptic number.

It is an amenable number.

80429141 is a deficient number, since it is larger than the sum of its proper divisors (6186871).

80429141 is a wasteful number, since it uses less digits than its factorization.

80429141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6186870.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 80429141 is about 8968.2295354211. The cubic root of 80429141 is about 431.6560279889.

The spelling of 80429141 in words is "eighty million, four hundred twenty-nine thousand, one hundred forty-one".

Divisors: 1 13 6186857 80429141