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203102330 = 2543472331
BaseRepresentation
bin11000001101100…
…01100001111010
3112011011200000112
430012301201322
5403443233310
632053104322
75014225034
oct1406614172
9464150015
10203102330
11a4711872
12580280a2
13331023c2
141cd8cc54
1512c6d705
hexc1b187a

203102330 has 16 divisors (see below), whose sum is σ = 374086944. Its totient is φ = 79351440.

The previous prime is 203102329. The next prime is 203102357. The reversal of 203102330 is 33201302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235736 + ... + 236595.

It is an arithmetic number, because the mean of its divisors is an integer number (23380434).

Almost surely, 2203102330 is an apocalyptic number.

203102330 is a deficient number, since it is larger than the sum of its proper divisors (170984614).

203102330 is a wasteful number, since it uses less digits than its factorization.

203102330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472381.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 203102330 is about 14251.3974753355. The cubic root of 203102330 is about 587.8118024982.

Adding to 203102330 its reverse (33201302), we get a palindrome (236303632).

The spelling of 203102330 in words is "two hundred three million, one hundred two thousand, three hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 472331 944662 2361655 4723310 20310233 40620466 101551165 203102330