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30134244 = 2237615881
BaseRepresentation
bin111001011110…
…0111111100100
32002200222102010
41302330333210
530203243434
62553514220
7514064640
oct162747744
962628363
1030134244
1116012338
12a112970
13632111a
144005c20
1529a39e9
hex1cbcfe4

30134244 has 48 divisors (see below), whose sum is σ = 81689216. Its totient is φ = 8467200.

The previous prime is 30134239. The next prime is 30134267. The reversal of 30134244 is 44243103.

It is a super-2 number, since 2×301342442 = 1816145322903072, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30134244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2184 + ... + 8064.

Almost surely, 230134244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30134244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40844608).

30134244 is an abundant number, since it is smaller than the sum of its proper divisors (51554972).

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

30134244 is a wasteful number, since it uses less digits than its factorization.

30134244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5956 (or 5954 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30134244 is about 5489.4666407585. The cubic root of 30134244 is about 311.1860357905.

Adding to 30134244 its reverse (44243103), we get a palindrome (74377347).

The spelling of 30134244 in words is "thirty million, one hundred thirty-four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 61 84 122 183 244 366 427 732 854 1281 1708 2562 5124 5881 11762 17643 23524 35286 41167 70572 82334 123501 164668 247002 358741 494004 717482 1076223 1434964 2152446 2511187 4304892 5022374 7533561 10044748 15067122 30134244