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331230030 = 23511041001
BaseRepresentation
bin10011101111100…
…010101101001110
3212002021020011220
4103233202231032
51134243330110
652511224210
711131260135
oct2357425516
9762236156
10331230030
1115aa7502a
1292b18066
1353813901
1431dc291c
151e12c370
hex13be2b4e

331230030 has 16 divisors (see below), whose sum is σ = 794952144. Its totient is φ = 88328000.

The previous prime is 331229959. The next prime is 331230037. The reversal of 331230030 is 30032133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 331229991 and 331230009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331230037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5520471 + ... + 5520530.

It is an arithmetic number, because the mean of its divisors is an integer number (49684509).

Almost surely, 2331230030 is an apocalyptic number.

331230030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331230030 is an abundant number, since it is smaller than the sum of its proper divisors (463722114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331230030 is a wasteful number, since it uses less digits than its factorization.

331230030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041011.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 331230030 is about 18199.7260968400. The cubic root of 331230030 is about 691.8998471226.

Adding to 331230030 its reverse (30032133), we get a palindrome (361262163).

The spelling of 331230030 in words is "three hundred thirty-one million, two hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 11041001 22082002 33123003 55205005 66246006 110410010 165615015 331230030