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80918229 = 373853249
BaseRepresentation
bin1001101001010…
…11011011010101
312122021001221110
410310223123111
5131203340404
612010205233
72001536130
oct464533325
9178231843
1080918229
1141749077
1223123819
13139c2312
14aa65217
157185b89
hex4d2b6d5

80918229 has 8 divisors (see below), whose sum is σ = 123304000. Its totient is φ = 46238976.

The previous prime is 80918197. The next prime is 80918231. The reversal of 80918229 is 92281908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80918229 - 25 = 80918197 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 (80918129) 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, 1926604 + ... + 1926645.

It is an arithmetic number, because the mean of its divisors is an integer number (15413000).

Almost surely, 280918229 is an apocalyptic number.

It is an amenable number.

80918229 is a deficient number, since it is larger than the sum of its proper divisors (42385771).

80918229 is a wasteful number, since it uses less digits than its factorization.

80918229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853259.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 80918229 is about 8995.4560195690. The cubic root of 80918229 is about 432.5292243052.

The spelling of 80918229 in words is "eighty million, nine hundred eighteen thousand, two hundred twenty-nine".

Divisors: 1 3 7 21 3853249 11559747 26972743 80918229