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80137235 = 5174572063
BaseRepresentation
bin1001100011011…
…00110000010011
312120210101121202
410301230300103
5131003342420
611541341415
71662104153
oct461546023
9176711552
1080137235
1141265322
1222a0786b
13137aa9a9
14a900763
15707e575
hex4c6cc13

80137235 has 16 divisors (see below), whose sum is σ = 102093696. Its totient is φ = 60177408.

The previous prime is 80137199. The next prime is 80137243. The reversal of 80137235 is 53273108.

It is a cyclic number.

It is not a de Polignac number, because 80137235 - 26 = 80137171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80137198 and 80137207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37814 + ... + 39876.

It is an arithmetic number, because the mean of its divisors is an integer number (6380856).

Almost surely, 280137235 is an apocalyptic number.

80137235 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

80137235 is a deficient number, since it is larger than the sum of its proper divisors (21956461).

80137235 is a wasteful number, since it uses less digits than its factorization.

80137235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 80137235 is about 8951.9402924729. The cubic root of 80137235 is about 431.1331837908.

The spelling of 80137235 in words is "eighty million, one hundred thirty-seven thousand, two hundred thirty-five".

Divisors: 1 5 17 85 457 2063 2285 7769 10315 35071 38845 175355 942791 4713955 16027447 80137235