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331230033 = 3312267779
BaseRepresentation
bin10011101111100…
…010101101010001
3212002021020012000
4103233202231101
51134243330113
652511224213
711131260141
oct2357425521
9762236160
10331230033
1115aa75032
1292b18069
1353813904
1431dc2921
151e12c373
hex13be2b51

331230033 has 8 divisors (see below), whose sum is σ = 490711200. Its totient is φ = 220820004.

The previous prime is 331229959. The next prime is 331230037. The reversal of 331230033 is 330032133.

331230033 is a `hidden beast` number, since 331 + 2 + 300 + 33 = 666.

It is not a de Polignac number, because 331230033 - 28 = 331229777 is a prime.

It is a super-2 number, since 2×3312300332 = 219426669522362178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331229988 and 331230015.

It is not an unprimeable number, because it can be changed into a prime (331230037) 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, 6133863 + ... + 6133916.

It is an arithmetic number, because the mean of its divisors is an integer number (61338900).

Almost surely, 2331230033 is an apocalyptic number.

It is an amenable number.

331230033 is a deficient number, since it is larger than the sum of its proper divisors (159481167).

331230033 is a wasteful number, since it uses less digits than its factorization.

331230033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12267788 (or 12267782 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 331230033 is about 18199.7261792589. The cubic root of 331230033 is about 691.8998492114.

Adding to 331230033 its reverse (330032133), we get a palindrome (661262166).

The spelling of 331230033 in words is "three hundred thirty-one million, two hundred thirty thousand, thirty-three".

Divisors: 1 3 9 27 12267779 36803337 110410011 331230033