Search a number
-
+
80122212 = 22322518867
BaseRepresentation
bin1001100011010…
…01000101100100
312120202122000100
410301221011210
5131002402322
611541144100
71662012312
oct461510544
9176678010
1080122212
1141255005
12229bb030
13137a3bc1
14a8d90b2
157079dac
hex4c69164

80122212 has 36 divisors (see below), whose sum is σ = 203360976. Its totient is φ = 26598000.

The previous prime is 80122193. The next prime is 80122243. The reversal of 80122212 is 21222108.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4603 + ... + 13469.

It is an arithmetic number, because the mean of its divisors is an integer number (5648916).

Almost surely, 280122212 is an apocalyptic number.

It is an amenable number.

80122212 is an abundant number, since it is smaller than the sum of its proper divisors (123238764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80122212 is a wasteful number, since it uses less digits than its factorization.

80122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128 (or 9123 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 80122212 is about 8951.1011613097. The cubic root of 80122212 is about 431.1062411817.

The spelling of 80122212 in words is "eighty million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 251 502 753 1004 1506 2259 3012 4518 8867 9036 17734 26601 35468 53202 79803 106404 159606 319212 2225617 4451234 6676851 8902468 13353702 20030553 26707404 40061106 80122212