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80682291 = 332988233
BaseRepresentation
bin1001100111100…
…01110100110011
312121211002022000
410303301310303
5131123313131
612001145043
71666534224
oct463616463
9177732260
1080682291
11415a7888
122302b183
131393bb01
14aa0324b
15713ace6
hex4cf1d33

80682291 has 8 divisors (see below), whose sum is σ = 119529360. Its totient is φ = 53788176.

The previous prime is 80682257. The next prime is 80682293. The reversal of 80682291 is 19228608.

It is not a de Polignac number, because 80682291 - 210 = 80681267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80682293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494090 + ... + 1494143.

It is an arithmetic number, because the mean of its divisors is an integer number (14941170).

Almost surely, 280682291 is an apocalyptic number.

80682291 is a deficient number, since it is larger than the sum of its proper divisors (38847069).

80682291 is a wasteful number, since it uses less digits than its factorization.

80682291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988242 (or 2988236 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 80682291 is about 8982.3321581870. The cubic root of 80682291 is about 432.1084315007.

The spelling of 80682291 in words is "eighty million, six hundred eighty-two thousand, two hundred ninety-one".

Divisors: 1 3 9 27 2988233 8964699 26894097 80682291