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491054844 = 22375845891
BaseRepresentation
bin11101010001001…
…110011011111100
31021020000011121110
4131101032123330
52001202223334
6120421002020
715111616530
oct3521163374
91236004543
10491054844
11232207855
12118553310
137a9726c7
1449307bc0
152d19cae9
hex1d44e6fc

491054844 has 24 divisors (see below), whose sum is σ = 1309479808. Its totient is φ = 140301360.

The previous prime is 491054833. The next prime is 491054857. The reversal of 491054844 is 448450194.

It is a super-2 number, since 2×4910548442 = 482269719631728672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2922862 + ... + 2923029.

Almost surely, 2491054844 is an apocalyptic number.

It is an amenable number.

491054844 is an abundant number, since it is smaller than the sum of its proper divisors (818424964).

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

491054844 is a wasteful number, since it uses less digits than its factorization.

491054844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845905 (or 5845903 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 491054844 is about 22159.7573091404. The cubic root of 491054844 is about 788.9388326628.

The spelling of 491054844 in words is "four hundred ninety-one million, fifty-four thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 5845891 11691782 17537673 23383564 35075346 40921237 70150692 81842474 122763711 163684948 245527422 491054844