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80043023 = 312582033
BaseRepresentation
bin1001100010101…
…01110000001111
312120121121101102
410301111300033
5130442334043
611535333315
71661232404
oct461256017
9176547342
1080043023
1141200565
122298123b
1313776b48
14a8b82ab
1570616b8
hex4c55c0f

80043023 has 4 divisors (see below), whose sum is σ = 82625088. Its totient is φ = 77460960.

The previous prime is 80043017. The next prime is 80043049. The reversal of 80043023 is 32034008.

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 80043023 - 216 = 79977487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80042986 and 80043004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80043053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290986 + ... + 1291047.

It is an arithmetic number, because the mean of its divisors is an integer number (20656272).

Almost surely, 280043023 is an apocalyptic number.

80043023 is a deficient number, since it is larger than the sum of its proper divisors (2582065).

80043023 is a wasteful number, since it uses less digits than its factorization.

80043023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582064.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 80043023 is about 8946.6766455483. The cubic root of 80043023 is about 430.9641660337.

The spelling of 80043023 in words is "eighty million, forty-three thousand, twenty-three".

Divisors: 1 31 2582033 80043023