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30041634 = 23723137227
BaseRepresentation
bin111001010011…
…0011000100010
32002112021101010
41302212120202
530142313014
62551521350
7513230640
oct162463042
962467333
1030041634
1115a597a7
12a089256
1362bac1c
143dc0190
152986359
hex1ca6622

30041634 has 64 divisors (see below), whose sum is σ = 72493056. Its totient is φ = 8114304.

The previous prime is 30041629. The next prime is 30041659. The reversal of 30041634 is 43614003.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30041634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132229 + ... + 132455.

It is an arithmetic number, because the mean of its divisors is an integer number (1132704).

Almost surely, 230041634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30041634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36246528).

30041634 is an abundant number, since it is smaller than the sum of its proper divisors (42451422).

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

30041634 is a wasteful number, since it uses less digits than its factorization.

30041634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

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

The square root of 30041634 is about 5481.0249041580. The cubic root of 30041634 is about 310.8669247279.

Adding to 30041634 its reverse (43614003), we get a palindrome (73655637).

The spelling of 30041634 in words is "thirty million, forty-one thousand, six hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 137 138 161 227 274 322 411 454 483 681 822 959 966 1362 1589 1918 2877 3151 3178 4767 5221 5754 6302 9453 9534 10442 15663 18906 22057 31099 31326 36547 44114 62198 66171 73094 93297 109641 132342 186594 217693 219282 435386 653079 715277 1306158 1430554 2145831 4291662 5006939 10013878 15020817 30041634