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330382221 = 31331273269
BaseRepresentation
bin10011101100010…
…011101110001101
3212000200011012120
4103230103232031
51134034212341
652441123153
711121126321
oct2354235615
9760604176
10330382221
1115a546064
12927894b9
13535a7a50
1431c41981
151e011066
hex13b13b8d

330382221 has 16 divisors (see below), whose sum is σ = 489699840. Its totient is φ = 196752960.

The previous prime is 330382219. The next prime is 330382237. The reversal of 330382221 is 122283033.

It is not a de Polignac number, because 330382221 - 21 = 330382219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 330382191 and 330382200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330382271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135426 + ... + 137843.

It is an arithmetic number, because the mean of its divisors is an integer number (30606240).

Almost surely, 2330382221 is an apocalyptic number.

330382221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

330382221 is a deficient number, since it is larger than the sum of its proper divisors (159317619).

330382221 is a wasteful number, since it uses less digits than its factorization.

330382221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273316.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 330382221 is about 18176.4193668610. The cubic root of 330382221 is about 691.3090189377.

The spelling of 330382221 in words is "three hundred thirty million, three hundred eighty-two thousand, two hundred twenty-one".

Divisors: 1 3 13 31 39 93 403 1209 273269 819807 3552497 8471339 10657491 25414017 110127407 330382221