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80344493 = 163492911
BaseRepresentation
bin1001100100111…
…11010110101101
312121011220220222
410302133112231
5131032010433
611550021125
71663626335
oct462372655
9177156828
1080344493
1141397009
1222aa77a5
1313851128
14a9560c5
1570c0b98
hex4c9f5ad

80344493 has 4 divisors (see below), whose sum is σ = 80837568. Its totient is φ = 79851420.

The previous prime is 80344477. The next prime is 80344531. The reversal of 80344493 is 39444308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80344493 - 24 = 80344477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80344093) 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, 246293 + ... + 246618.

It is an arithmetic number, because the mean of its divisors is an integer number (20209392).

Almost surely, 280344493 is an apocalyptic number.

It is an amenable number.

80344493 is a deficient number, since it is larger than the sum of its proper divisors (493075).

80344493 is a wasteful number, since it uses less digits than its factorization.

80344493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493074.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 80344493 is about 8963.5089669169. The cubic root of 80344493 is about 431.5045420764.

The spelling of 80344493 in words is "eighty million, three hundred forty-four thousand, four hundred ninety-three".

Divisors: 1 163 492911 80344493