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30230382 = 2371324259
BaseRepresentation
bin111001101010…
…0011101101110
32002212212021210
41303110131232
530214333012
62555535250
7514645140
oct163243556
962785253
1030230382
1116078596
12a15a526
136355b00
14402cc90
1529c223c
hex1cd476e

30230382 has 48 divisors (see below), whose sum is σ = 74839680. Its totient is φ = 7970976.

The previous prime is 30230381. The next prime is 30230399. The reversal of 30230382 is 28303203.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4969 + ... + 9227.

It is an arithmetic number, because the mean of its divisors is an integer number (1559160).

Almost surely, 230230382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30230382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37419840).

30230382 is an abundant number, since it is smaller than the sum of its proper divisors (44609298).

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

30230382 is a wasteful number, since it uses less digits than its factorization.

30230382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297 (or 4284 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30230382 is about 5498.2162562053. The cubic root of 30230382 is about 311.5166125767.

Adding to 30230382 its reverse (28303203), we get a palindrome (58533585).

The spelling of 30230382 in words is "thirty million, two hundred thirty thousand, three hundred eighty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 169 182 273 338 507 546 1014 1183 2366 3549 4259 7098 8518 12777 25554 29813 55367 59626 89439 110734 166101 178878 332202 387569 719771 775138 1162707 1439542 2159313 2325414 4318626 5038397 10076794 15115191 30230382