Search a number
-
+
30609612 = 22321127027
BaseRepresentation
bin111010011000…
…1000011001100
32010121010111100
41310301003030
530314001422
63012023100
7521114565
oct164610314
963533440
1030609612
1116307500
12a301a90
1364595c7
1440cb16c
152a497ac
hex1d310cc

30609612 has 54 divisors (see below), whose sum is σ = 85059884. Its totient is φ = 9274320.

The previous prime is 30609599. The next prime is 30609629. The reversal of 30609612 is 21690603.

It is a happy number.

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 17 ways as a sum of consecutive naturals, for example, 843 + ... + 7869.

Almost surely, 230609612 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 30609612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42529942).

30609612 is an abundant number, since it is smaller than the sum of its proper divisors (54450272).

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

30609612 is a wasteful number, since it uses less digits than its factorization.

30609612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059 (or 7043 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30609612 is about 5532.5954126431. The cubic root of 30609612 is about 312.8138270281.

The spelling of 30609612 in words is "thirty million, six hundred nine thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 121 132 198 242 363 396 484 726 1089 1452 2178 4356 7027 14054 21081 28108 42162 63243 77297 84324 126486 154594 231891 252972 309188 463782 695673 850267 927564 1391346 1700534 2550801 2782692 3401068 5101602 7652403 10203204 15304806 30609612