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30473608 = 2311231481
BaseRepresentation
bin111010000111…
…1110110001000
32010100012221011
41310033312020
530300123413
63005053304
7520010224
oct164176610
963305834
1030473608
1116224300
12a257234
13640c729
144093784
152a1e33d
hex1d0fd88

30473608 has 24 divisors (see below), whose sum is σ = 62806590. Its totient is φ = 13851200.

The previous prime is 30473603. The next prime is 30473621. The reversal of 30473608 is 80637403.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 465124 = 5478^2 + 682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30473608.

It is not an unprimeable number, because it can be changed into a prime (30473603) 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 5 ways as a sum of consecutive naturals, for example, 14773 + ... + 16708.

Almost surely, 230473608 is an apocalyptic number.

It is an amenable number.

30473608 is an abundant number, since it is smaller than the sum of its proper divisors (32332982).

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

30473608 is a wasteful number, since it uses less digits than its factorization.

30473608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31509 (or 31494 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 30473608 is about 5520.2905720623. The cubic root of 30473608 is about 312.3498431676.

The spelling of 30473608 in words is "thirty million, four hundred seventy-three thousand, six hundred eight".

Divisors: 1 2 4 8 11 22 44 88 121 242 484 968 31481 62962 125924 251848 346291 692582 1385164 2770328 3809201 7618402 15236804 30473608