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30163693 = 76316829
BaseRepresentation
bin111001100010…
…0001011101101
32002202110210211
41303010023231
530210214233
62554302421
7514246540
oct163041355
962673724
1030163693
111603247a
12a127a11
136331651
144012857
1529ac5cd
hex1cc42ed

30163693 has 8 divisors (see below), whose sum is σ = 34532480. Its totient is φ = 25809840.

The previous prime is 30163687. The next prime is 30163703. The reversal of 30163693 is 39636103.

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

It is a de Polignac number, because none of the positive numbers 2k-30163693 is a prime.

It is a super-3 number, since 3×301636933 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30160693) 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 7 ways as a sum of consecutive naturals, for example, 1003 + ... + 7831.

It is an arithmetic number, because the mean of its divisors is an integer number (4316560).

Almost surely, 230163693 is an apocalyptic number.

It is an amenable number.

30163693 is a deficient number, since it is larger than the sum of its proper divisors (4368787).

30163693 is an equidigital number, since it uses as much as digits as its factorization.

30163693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 30163693 is about 5492.1483046254. The cubic root of 30163693 is about 311.2873727052.

Adding to 30163693 its reverse (39636103), we get a palindrome (69799796).

The spelling of 30163693 in words is "thirty million, one hundred sixty-three thousand, six hundred ninety-three".

Divisors: 1 7 631 4417 6829 47803 4309099 30163693