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231270768 = 2433535349
BaseRepresentation
bin11011100100011…
…10100101110000
3121010011202212000
431302032211300
5433201131033
634540534000
75505524541
oct1562164560
9533152760
10231270768
11109601173
1265551300
1338bb5811
1422a024c8
1515484a13
hexdc8e970

231270768 has 40 divisors (see below), whose sum is σ = 663834000. Its totient is φ = 77090112.

The previous prime is 231270733. The next prime is 231270769. The reversal of 231270768 is 867072132.

231270768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231270769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267243 + ... + 268106.

It is an arithmetic number, because the mean of its divisors is an integer number (16595850).

Almost surely, 2231270768 is an apocalyptic number.

It is an amenable number.

231270768 is an abundant number, since it is smaller than the sum of its proper divisors (432563232).

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

231270768 is a wasteful number, since it uses less digits than its factorization.

231270768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535366 (or 535354 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 231270768 is about 15207.5891580487. The cubic root of 231270768 is about 613.8188871897.

The spelling of 231270768 in words is "two hundred thirty-one million, two hundred seventy thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 535349 1070698 1606047 2141396 3212094 4282792 4818141 6424188 8565584 9636282 12848376 14454423 19272564 25696752 28908846 38545128 57817692 77090256 115635384 231270768