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331223030 = 25151219353
BaseRepresentation
bin10011101111100…
…000111111110110
3212002020212120122
4103233200333312
51134243114110
652511131542
711131230545
oct2357407766
9762225518
10331223030
1115aa6a846
1292b13bb2
1353810678
1431dc015c
151e12a255
hex13be0ff6

331223030 has 16 divisors (see below), whose sum is σ = 600152544. Its totient is φ = 131611200.

The previous prime is 331223017. The next prime is 331223041. The reversal of 331223030 is 30322133.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108167 + ... + 111186.

It is an arithmetic number, because the mean of its divisors is an integer number (37509534).

Almost surely, 2331223030 is an apocalyptic number.

331223030 is a deficient number, since it is larger than the sum of its proper divisors (268929514).

331223030 is a wasteful number, since it uses less digits than its factorization.

331223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219511.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 331223030 is about 18199.5337852375. The cubic root of 331223030 is about 691.8949730344.

Adding to 331223030 its reverse (30322133), we get a palindrome (361545163).

The spelling of 331223030 in words is "three hundred thirty-one million, two hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 151 302 755 1510 219353 438706 1096765 2193530 33122303 66244606 165611515 331223030