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80042315 = 516008463
BaseRepresentation
bin1001100010101…
…01100101001011
312120121120102012
410301111211023
5130442323230
611535330135
71661230343
oct461254513
9176546365
1080042315
11411aaa81
122298094b
1313776722
14a8b7d23
157061395
hex4c5594b

80042315 has 4 divisors (see below), whose sum is σ = 96050784. Its totient is φ = 64033848.

The previous prime is 80042293. The next prime is 80042351. The reversal of 80042315 is 51324008.

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 80042315 - 216 = 79976779 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 8004227 + ... + 8004236.

It is an arithmetic number, because the mean of its divisors is an integer number (24012696).

Almost surely, 280042315 is an apocalyptic number.

80042315 is a deficient number, since it is larger than the sum of its proper divisors (16008469).

80042315 is a wasteful number, since it uses less digits than its factorization.

80042315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16008468.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 80042315 is about 8946.6370776957. The cubic root of 80042315 is about 430.9628953690.

The spelling of 80042315 in words is "eighty million, forty-two thousand, three hundred fifteen".

Divisors: 1 5 16008463 80042315