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1043230140 = 223255795723
BaseRepresentation
bin111110001011100…
…110110110111100
32200201000120201100
4332023212312330
54114031331030
6251304013100
734565211201
oct7613466674
92621016640
101043230140
11495970277
12251461190
13138195054
149c7a1ca8
15618c0360
hex3e2e6dbc

1043230140 has 36 divisors (see below), whose sum is σ = 3164465304. Its totient is φ = 278194656.

The previous prime is 1043230127. The next prime is 1043230141. The reversal of 1043230140 is 410323401.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×10432301403 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043230141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2897682 + ... + 2898041.

It is an arithmetic number, because the mean of its divisors is an integer number (87901814).

Almost surely, 21043230140 is an apocalyptic number.

1043230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043230140 is an abundant number, since it is smaller than the sum of its proper divisors (2121235164).

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

1043230140 is a wasteful number, since it uses less digits than its factorization.

1043230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795738 (or 5795733 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1043230140 is about 32299.0733613211. The cubic root of 1043230140 is about 1014.2072449662.

Adding to 1043230140 its reverse (410323401), we get a palindrome (1453553541).

The spelling of 1043230140 in words is "one billion, forty-three million, two hundred thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 5795723 11591446 17387169 23182892 28978615 34774338 52161507 57957230 69548676 86935845 104323014 115914460 173871690 208646028 260807535 347743380 521615070 1043230140