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80137748 = 2233160527
BaseRepresentation
bin1001100011011…
…00111000010100
312120210102022202
410301230320110
5131003401443
611541344032
71662105515
oct461547024
9176712282
1080137748
1141265749
1222a08018
13137aacb2
14a900a0c
15707e7b8
hex4c6ce14

80137748 has 12 divisors (see below), whose sum is σ = 140667072. Its totient is φ = 39947160.

The previous prime is 80137747. The next prime is 80137769. The reversal of 80137748 is 84773108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80137741) 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, 28940 + ... + 31587.

It is an arithmetic number, because the mean of its divisors is an integer number (11722256).

Almost surely, 280137748 is an apocalyptic number.

It is an amenable number.

80137748 is a deficient number, since it is larger than the sum of its proper divisors (60529324).

80137748 is a wasteful number, since it uses less digits than its factorization.

80137748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60862 (or 60860 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 80137748 is about 8951.9689454332. The cubic root of 80137748 is about 431.1341037579.

The spelling of 80137748 in words is "eighty million, one hundred thirty-seven thousand, seven hundred forty-eight".

Divisors: 1 2 4 331 662 1324 60527 121054 242108 20034437 40068874 80137748