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80161343 = 711129033
BaseRepresentation
bin1001100011100…
…10101000111111
312120211121200122
410301302220333
5131010130333
611542045155
71662234353
oct461625077
9176747618
1080161343
1141281449
1222a197bb
13137b8962
14a909463
157086798
hex4c72a3f

80161343 has 4 divisors (see below), whose sum is σ = 81290448. Its totient is φ = 79032240.

The previous prime is 80161339. The next prime is 80161349. The reversal of 80161343 is 34316108.

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 80161343 - 22 = 80161339 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 (80161349) 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, 564446 + ... + 564587.

It is an arithmetic number, because the mean of its divisors is an integer number (20322612).

Almost surely, 280161343 is an apocalyptic number.

80161343 is a deficient number, since it is larger than the sum of its proper divisors (1129105).

80161343 is a wasteful number, since it uses less digits than its factorization.

80161343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129104.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 80161343 is about 8953.2867149444. The cubic root of 80161343 is about 431.1764126207.

The spelling of 80161343 in words is "eighty million, one hundred sixty-one thousand, three hundred forty-three".

Divisors: 1 71 1129033 80161343