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231053412 = 22319254451
BaseRepresentation
bin11011100010110…
…01100001100100
3121002202201200210
431301121201210
5433122202122
634532135420
75503631052
oct1561314144
9532681623
10231053412
11109472937
1265467570
1338b3a8c5
14229871d2
151544040c
hexdc59864

231053412 has 12 divisors (see below), whose sum is σ = 539124656. Its totient is φ = 77017800.

The previous prime is 231053399. The next prime is 231053413. The reversal of 231053412 is 214350132.

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

It is not an unprimeable number, because it can be changed into a prime (231053413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9627214 + ... + 9627237.

Almost surely, 2231053412 is an apocalyptic number.

It is an amenable number.

231053412 is an abundant number, since it is smaller than the sum of its proper divisors (308071244).

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

231053412 is a wasteful number, since it uses less digits than its factorization.

231053412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19254458 (or 19254456 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 231053412 is about 15200.4411778080. The cubic root of 231053412 is about 613.6265310788.

The spelling of 231053412 in words is "two hundred thirty-one million, fifty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 19254451 38508902 57763353 77017804 115526706 231053412