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30041766 = 234414523
BaseRepresentation
bin111001010011…
…0011010100110
32002112021120000
41302212122212
530142314031
62551522130
7513231216
oct162463246
962467500
1030041766
1115a59907
12a089346
1362bacc1
143dc0246
1529863e6
hex1ca66a6

30041766 has 40 divisors (see below), whose sum is σ = 68972904. Its totient is φ = 9767520.

The previous prime is 30041761. The next prime is 30041777. The reversal of 30041766 is 66714003.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30041761) 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 19 ways as a sum of consecutive naturals, for example, 4381 + ... + 8903.

Almost surely, 230041766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30041766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34486452).

30041766 is an abundant number, since it is smaller than the sum of its proper divisors (38931138).

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

30041766 is a wasteful number, since it uses less digits than its factorization.

30041766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578 (or 4569 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30041766 is about 5481.0369456883. The cubic root of 30041766 is about 310.8673800336.

Adding to 30041766 its reverse (66714003), we get a palindrome (96755769).

The spelling of 30041766 in words is "thirty million, forty-one thousand, seven hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 41 54 81 82 123 162 246 369 738 1107 2214 3321 4523 6642 9046 13569 27138 40707 81414 122121 185443 244242 366363 370886 556329 732726 1112658 1668987 3337974 5006961 10013922 15020883 30041766