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80864222 = 240432111
BaseRepresentation
bin1001101000111…
…10001111011110
312122011022212012
410310132033132
5131200123342
612005111222
72001222515
oct464361736
9178138765
1080864222
114171153a
12230b8512
13139a386a
14aa4d67c
157174b82
hex4d1e3de

80864222 has 4 divisors (see below), whose sum is σ = 121296336. Its totient is φ = 40432110.

The previous prime is 80864219. The next prime is 80864249. The reversal of 80864222 is 22246808.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216054 + ... + 20216057.

It is an arithmetic number, because the mean of its divisors is an integer number (30324084).

Almost surely, 280864222 is an apocalyptic number.

80864222 is a deficient number, since it is larger than the sum of its proper divisors (40432114).

80864222 is a wasteful number, since it uses less digits than its factorization.

80864222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40432113.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 80864222 is about 8992.4536140032. The cubic root of 80864222 is about 432.4329756808.

The spelling of 80864222 in words is "eighty million, eight hundred sixty-four thousand, two hundred twenty-two".

Divisors: 1 2 40432111 80864222