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330248281 = 1130022571
BaseRepresentation
bin10011101011110…
…011000001011001
3212000102100110211
4103223303001121
51134020421111
652434211121
711120030656
oct2353630131
9760370424
10330248281
1115a464470
1292723aa1
135355baac
1431c08c2d
151ded6521
hex13af3059

330248281 has 4 divisors (see below), whose sum is σ = 360270864. Its totient is φ = 300225700.

The previous prime is 330248251. The next prime is 330248287. The reversal of 330248281 is 182842033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 330248281 - 215 = 330215513 is a prime.

It is a super-3 number, since 3×3302482813 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330248287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15011275 + ... + 15011296.

It is an arithmetic number, because the mean of its divisors is an integer number (90067716).

Almost surely, 2330248281 is an apocalyptic number.

It is an amenable number.

330248281 is a deficient number, since it is larger than the sum of its proper divisors (30022583).

330248281 is a wasteful number, since it uses less digits than its factorization.

330248281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022582.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 330248281 is about 18172.7345493187. The cubic root of 330248281 is about 691.2155852925.

The spelling of 330248281 in words is "three hundred thirty million, two hundred forty-eight thousand, two hundred eighty-one".

Divisors: 1 11 30022571 330248281