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831440244 = 22369286687
BaseRepresentation
bin110001100011101…
…100010101110100
32010221111112121010
4301203230111310
53200322041434
6214300352220
726414061015
oct6143542564
92127445533
10831440244
113973653a8
121b2545670
1310334059b
147c5d100c
154ced79e9
hex318ec574

831440244 has 12 divisors (see below), whose sum is σ = 1940027264. Its totient is φ = 277146744.

The previous prime is 831440231. The next prime is 831440257. The reversal of 831440244 is 442044138.

831440244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (831440231) and next prime (831440257).

It is a tau number, because it is divible by the number of its divisors (12).

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, 34643332 + ... + 34643355.

Almost surely, 2831440244 is an apocalyptic number.

It is an amenable number.

831440244 is an abundant number, since it is smaller than the sum of its proper divisors (1108587020).

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

831440244 is a wasteful number, since it uses less digits than its factorization.

831440244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69286694 (or 69286692 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 831440244 is about 28834.7055473088. The cubic root of 831440244 is about 940.3229024959.

The spelling of 831440244 in words is "eight hundred thirty-one million, four hundred forty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 69286687 138573374 207860061 277146748 415720122 831440244