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30663445 = 56319719
BaseRepresentation
bin111010011111…
…0001100010101
32010200212100011
41310332030111
530322212240
63013120221
7521430541
oct164761425
963625304
1030663445
111634399a
12a329071
136477c67
144102a21
152a5a6ea
hex1d3e315

30663445 has 8 divisors (see below), whose sum is σ = 36858240. Its totient is φ = 24489360.

The previous prime is 30663337. The next prime is 30663463. The reversal of 30663445 is 54436603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30663445 - 219 = 30139157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705 + ... + 8014.

It is an arithmetic number, because the mean of its divisors is an integer number (4607280).

Almost surely, 230663445 is an apocalyptic number.

It is an amenable number.

30663445 is a deficient number, since it is larger than the sum of its proper divisors (6194795).

30663445 is an equidigital number, since it uses as much as digits as its factorization.

30663445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10355.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 30663445 is about 5537.4583519879. The cubic root of 30663445 is about 312.9971010970.

The spelling of 30663445 in words is "thirty million, six hundred sixty-three thousand, four hundred forty-five".

Divisors: 1 5 631 3155 9719 48595 6132689 30663445