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133330230 = 232511134677
BaseRepresentation
bin1111111001001…
…11010100110110
3100021212212200200
413330213110312
5233113031410
621121421330
73206200605
oct774472466
9307785620
10133330230
1169296a80
123879a846
1321813537
14139c9a3c
15ba8a3c0
hex7f27536

133330230 has 48 divisors (see below), whose sum is σ = 378175824. Its totient is φ = 32322240.

The previous prime is 133330189. The next prime is 133330247. The reversal of 133330230 is 32033331.

133330230 is a `hidden beast` number, since 1 + 333 + 302 + 30 = 666.

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

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 23 ways as a sum of consecutive naturals, for example, 66349 + ... + 68328.

It is an arithmetic number, because the mean of its divisors is an integer number (7878663).

Almost surely, 2133330230 is an apocalyptic number.

133330230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133330230 is an abundant number, since it is smaller than the sum of its proper divisors (244845594).

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

133330230 is a wasteful number, since it uses less digits than its factorization.

133330230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134701 (or 134698 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 133330230 is about 11546.8710047354. The cubic root of 133330230 is about 510.8689913756.

Adding to 133330230 its reverse (32033331), we get a palindrome (165363561).

The spelling of 133330230 in words is "one hundred thirty-three million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 134677 269354 404031 673385 808062 1212093 1346770 1481447 2020155 2424186 2962894 4040310 4444341 6060465 7407235 8888682 12120930 13333023 14814470 22221705 26666046 44443410 66665115 133330230