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331120331 = 3159181039
BaseRepresentation
bin10011101111000…
…111111011001011
3212002001122200222
4103233013323023
51134231322311
652505020255
711130322253
oct2357077313
9762048628
10331120331
1115a9aa673
1292a8468b
13537a59b9
1431d94963
151e109adb
hex13bc7ecb

331120331 has 8 divisors (see below), whose sum is σ = 347596800. Its totient is φ = 315006120.

The previous prime is 331120327. The next prime is 331120333. The reversal of 331120331 is 133021133.

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 331120331 - 22 = 331120327 is a prime.

It is a super-2 number, since 2×3311203312 = 219281347203099122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331120333) by changing a digit.

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, 88691 + ... + 92348.

It is an arithmetic number, because the mean of its divisors is an integer number (43449600).

Almost surely, 2331120331 is an apocalyptic number.

331120331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331120331 is a deficient number, since it is larger than the sum of its proper divisors (16476469).

331120331 is a wasteful number, since it uses less digits than its factorization.

331120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181129.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 331120331 is about 18196.7120931228. The cubic root of 331120331 is about 691.8234559995.

Adding to 331120331 its reverse (133021133), we get a palindrome (464141464).

The spelling of 331120331 in words is "three hundred thirty-one million, one hundred twenty thousand, three hundred thirty-one".

Divisors: 1 31 59 1829 181039 5612209 10681301 331120331