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30144123306 = 2321131258207
BaseRepresentation
bin11100000100101110…
…101101000110101010
32212210210111010101100
4130010232231012222
5443213343421211
621503101102230
72114666551263
oct340456550652
985723433340
1030144123306
1111869632000
125a13257976
132ac51b716b
14165d64396a
15bb65e7156
hex704bad1aa

30144123306 has 48 divisors (see below), whose sum is σ = 71838643968. Its totient is φ = 9134575560.

The previous prime is 30144123271. The next prime is 30144123313. The reversal of 30144123306 is 60332144103.

30144123306 is a `hidden beast` number, since 301 + 44 + 12 + 3 + 306 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 30144123306.

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, 605146 + ... + 653061.

It is an arithmetic number, because the mean of its divisors is an integer number (1496638416).

Almost surely, 230144123306 is an apocalyptic number.

30144123306 is an abundant number, since it is smaller than the sum of its proper divisors (41694520662).

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

30144123306 is a wasteful number, since it uses less digits than its factorization.

30144123306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258248 (or 1258223 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 30144123306 its reverse (60332144103), we get a palindrome (90476267409).

The spelling of 30144123306 in words is "thirty billion, one hundred forty-four million, one hundred twenty-three thousand, three hundred six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 726 1089 1331 2178 2662 3993 7986 11979 23958 1258207 2516414 3774621 7549242 11323863 13840277 22647726 27680554 41520831 83041662 124562493 152243047 249124986 304486094 456729141 913458282 1370187423 1674673517 2740374846 3349347034 5024020551 10048041102 15072061653 30144123306