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330042231 = 3236671359
BaseRepresentation
bin10011101011000…
…000101101110111
3212000000212211100
4103223000231313
51133442322411
652425541143
711115212151
oct2353005567
9760025740
10330042231
1115a333682
12926447b3
13534b907c
1431b93ad1
151de95456
hex13ac0b77

330042231 has 6 divisors (see below), whose sum is σ = 476727680. Its totient is φ = 220028148.

The previous prime is 330042187. The next prime is 330042259. The reversal of 330042231 is 132240033.

It is not a de Polignac number, because 330042231 - 210 = 330041207 is a prime.

It is a super-2 number, since 2×3300422312 = 217855748486914722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330049231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18335671 + ... + 18335688.

Almost surely, 2330042231 is an apocalyptic number.

330042231 is a deficient number, since it is larger than the sum of its proper divisors (146685449).

330042231 is a wasteful number, since it uses less digits than its factorization.

330042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36671365 (or 36671362 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 330042231 is about 18167.0644574185. The cubic root of 330042231 is about 691.0717999340.

Adding to 330042231 its reverse (132240033), we get a palindrome (462282264).

The spelling of 330042231 in words is "three hundred thirty million, forty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 36671359 110014077 330042231