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30475386 = 233564359
BaseRepresentation
bin111010001000…
…0010001111010
32010100022101000
41310100101322
530300203021
63005105430
7520015344
oct164202172
963308330
1030475386
1116225677
12a258276
136410496
144094294
152a1eb26
hex1d1047a

30475386 has 16 divisors (see below), whose sum is σ = 67723200. Its totient is φ = 10158444.

The previous prime is 30475369. The next prime is 30475397. The reversal of 30475386 is 68357403.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30475386.

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 7 ways as a sum of consecutive naturals, for example, 282126 + ... + 282233.

It is an arithmetic number, because the mean of its divisors is an integer number (4232700).

Almost surely, 230475386 is an apocalyptic number.

30475386 is an abundant number, since it is smaller than the sum of its proper divisors (37247814).

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

30475386 is a wasteful number, since it uses less digits than its factorization.

30475386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564370 (or 564364 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30475386 is about 5520.4516119607. The cubic root of 30475386 is about 312.3559177926.

The spelling of 30475386 in words is "thirty million, four hundred seventy-five thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 564359 1128718 1693077 3386154 5079231 10158462 15237693 30475386