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30318386 = 272165599
BaseRepresentation
bin111001110100…
…1111100110010
32010001100000012
41303221330302
530230142021
63001454522
7515462540
oct163517462
963040005
1030318386
111612871a
12a1a1442
136386b97
144052d90
1529dd35b
hex1ce9f32

30318386 has 8 divisors (see below), whose sum is σ = 51974400. Its totient is φ = 12993588.

The previous prime is 30318373. The next prime is 30318391. The reversal of 30318386 is 68381303.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082786 + ... + 1082813.

It is an arithmetic number, because the mean of its divisors is an integer number (6496800).

Almost surely, 230318386 is an apocalyptic number.

30318386 is a deficient number, since it is larger than the sum of its proper divisors (21656014).

30318386 is a wasteful number, since it uses less digits than its factorization.

30318386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165608.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30318386 is about 5506.2133994243. The cubic root of 30318386 is about 311.8186062079.

Adding to 30318386 its reverse (68381303), we get a palindrome (98699689).

The spelling of 30318386 in words is "thirty million, three hundred eighteen thousand, three hundred eighty-six".

Divisors: 1 2 7 14 2165599 4331198 15159193 30318386