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80083919 = 191341863
BaseRepresentation
bin1001100010111…
…11101111001111
312120200200111002
410301133233033
5131000141134
611540250515
71661462546
oct461375717
9176620432
1080083919
1141229263
12229a0a3b
131378c646
14a8c915d
15706d87e
hex4c5fbcf

80083919 has 4 divisors (see below), whose sum is σ = 80127696. Its totient is φ = 80040144.

The previous prime is 80083903. The next prime is 80083933. The reversal of 80083919 is 91938008.

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 80083919 - 24 = 80083903 is a prime.

It is a super-2 number, since 2×800839192 = 12826868164797122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80083019) 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, 19019 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (20031924).

Almost surely, 280083919 is an apocalyptic number.

80083919 is a deficient number, since it is larger than the sum of its proper divisors (43777).

80083919 is a wasteful number, since it uses less digits than its factorization.

80083919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43776.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 80083919 is about 8948.9618951027. The cubic root of 80083919 is about 431.0375503591.

The spelling of 80083919 in words is "eighty million, eighty-three thousand, nine hundred nineteen".

Divisors: 1 1913 41863 80083919