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80454043 = 131614153
BaseRepresentation
bin1001100101110…
…10000110011011
312121101111012101
410302322012123
5131044012133
611552224231
71664563615
oct462720633
9177344171
1080454043
114146134a
1222b3b077
131388bc57
14a983db5
1570e337d
hex4cba19b

80454043 has 4 divisors (see below), whose sum is σ = 81068328. Its totient is φ = 79839760.

The previous prime is 80454041. The next prime is 80454061. The reversal of 80454043 is 34045408.

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

It is a cyclic number.

It is not a de Polignac number, because 80454043 - 21 = 80454041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80454041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306946 + ... + 307207.

It is an arithmetic number, because the mean of its divisors is an integer number (20267082).

Almost surely, 280454043 is an apocalyptic number.

80454043 is a deficient number, since it is larger than the sum of its proper divisors (614285).

80454043 is a wasteful number, since it uses less digits than its factorization.

80454043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614284.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 80454043 is about 8969.6177733502. The cubic root of 80454043 is about 431.7005723299.

The spelling of 80454043 in words is "eighty million, four hundred fifty-four thousand, forty-three".

Divisors: 1 131 614153 80454043