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30250333 = 415313921
BaseRepresentation
bin111001101100…
…1010101011101
32002220212122201
41303121111131
530221002313
63000211501
7515060251
oct163312535
962825581
1030250333
1116091583
12a169b91
136361c09
144036261
1529c80dd
hex1cd955d

30250333 has 8 divisors (see below), whose sum is σ = 31575096. Its totient is φ = 28953600.

The previous prime is 30250321. The next prime is 30250351. The reversal of 30250333 is 33305203.

It can be written as a sum of positive squares in 4 ways, for example, as 2181529 + 28068804 = 1477^2 + 5298^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30250333 - 25 = 30250301 is a prime.

It is a super-2 number, since 2×302503332 = 1830165293221778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30250333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30250373) 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, 4788 + ... + 9133.

It is an arithmetic number, because the mean of its divisors is an integer number (3946887).

Almost surely, 230250333 is an apocalyptic number.

It is an amenable number.

30250333 is a deficient number, since it is larger than the sum of its proper divisors (1324763).

30250333 is a wasteful number, since it uses less digits than its factorization.

30250333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14015.

The product of its (nonzero) digits is 810, while the sum is 19.

The square root of 30250333 is about 5500.0302726440. The cubic root of 30250333 is about 311.5851275473.

Adding to 30250333 its reverse (33305203), we get a palindrome (63555536).

The spelling of 30250333 in words is "thirty million, two hundred fifty thousand, three hundred thirty-three".

Divisors: 1 41 53 2173 13921 570761 737813 30250333