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449196980 = 22522459849
BaseRepresentation
bin11010110001100…
…011001110110100
31011022020120102012
4122301203032310
51404443300410
6112323503352
714063053121
oct3261431664
91138216365
10449196980
11210618381
12106527b58
13720a833b
144392d748
1529680605
hex1ac633b4

449196980 has 12 divisors (see below), whose sum is σ = 943313700. Its totient is φ = 179678784.

The previous prime is 449196977. The next prime is 449196997. The reversal of 449196980 is 89691944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 304572304 + 144624676 = 17452^2 + 12026^2 .

It is a super-2 number, since 2×4491969802 = 403555853682240800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11229905 + ... + 11229944.

It is an arithmetic number, because the mean of its divisors is an integer number (78609475).

Almost surely, 2449196980 is an apocalyptic number.

It is an amenable number.

449196980 is an abundant number, since it is smaller than the sum of its proper divisors (494116720).

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

449196980 is a wasteful number, since it uses less digits than its factorization.

449196980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22459858 (or 22459856 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 449196980 is about 21194.2676212225. The cubic root of 449196980 is about 765.8533374312.

The spelling of 449196980 in words is "four hundred forty-nine million, one hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 22459849 44919698 89839396 112299245 224598490 449196980