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30323481 = 317835669
BaseRepresentation
bin111001110101…
…1001100011001
32010001120222220
41303223030121
530230322411
63001534253
7515513436
oct163531431
963046886
1030323481
1116131531
12a1a4389
1363892b6
144054b8d
1529deb06
hex1ceb319

30323481 has 8 divisors (see below), whose sum is σ = 40461120. Its totient is φ = 20200752.

The previous prime is 30323441. The next prime is 30323483. The reversal of 30323481 is 18432303.

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

It is not a de Polignac number, because 30323481 - 27 = 30323353 is a prime.

It is a super-2 number, since 2×303234812 = 1839026999914722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30323483) 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, 2515 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (5057640).

Almost surely, 230323481 is an apocalyptic number.

It is an amenable number.

30323481 is a deficient number, since it is larger than the sum of its proper divisors (10137639).

30323481 is a wasteful number, since it uses less digits than its factorization.

30323481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7455.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30323481 is about 5506.6760391365. The cubic root of 30323481 is about 311.8360722521.

Adding to 30323481 its reverse (18432303), we get a palindrome (48755784).

The spelling of 30323481 in words is "thirty million, three hundred twenty-three thousand, four hundred eighty-one".

Divisors: 1 3 1783 5349 5669 17007 10107827 30323481