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30344653 = 195712797
BaseRepresentation
bin111001111000…
…0010111001101
32010002200001001
41303300113031
530232012103
63002220301
7515632243
oct163602715
963080031
1030344653
1116146429
12a1b4691
136395b21
14405c793
1529e601d
hex1cf05cd

30344653 has 8 divisors (see below), whose sum is σ = 32009120. Its totient is φ = 28686960.

The previous prime is 30344651. The next prime is 30344663. The reversal of 30344653 is 35644303.

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

It is not a de Polignac number, because 30344653 - 21 = 30344651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30344651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9451 + ... + 12247.

It is an arithmetic number, because the mean of its divisors is an integer number (4001140).

Almost surely, 230344653 is an apocalyptic number.

It is an amenable number.

30344653 is a deficient number, since it is larger than the sum of its proper divisors (1664467).

30344653 is a wasteful number, since it uses less digits than its factorization.

30344653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 30344653 is about 5508.5980975199. The cubic root of 30344653 is about 311.9086305154.

Adding to 30344653 its reverse (35644303), we get a palindrome (65988956).

The spelling of 30344653 in words is "thirty million, three hundred forty-four thousand, six hundred fifty-three".

Divisors: 1 19 571 2797 10849 53143 1597087 30344653