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203302430 = 25103197381
BaseRepresentation
bin11000001111000…
…10011000011110
3112011112211111122
430013202120132
5404021134210
632101250542
75016020312
oct1407423036
9464484448
10203302430
11a4839141
1258103a52
13331724c6
141d001b42
1512cacb55
hexc1e261e

203302430 has 16 divisors (see below), whose sum is σ = 369499104. Its totient is φ = 80531040.

The previous prime is 203302427. The next prime is 203302453. The reversal of 203302430 is 34203302.

It is a junction number, because it is equal to n+sod(n) for n = 203302399 and 203302408.

It is a congruent number.

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, 97661 + ... + 99720.

It is an arithmetic number, because the mean of its divisors is an integer number (23093694).

Almost surely, 2203302430 is an apocalyptic number.

203302430 is a deficient number, since it is larger than the sum of its proper divisors (166196674).

203302430 is a wasteful number, since it uses less digits than its factorization.

203302430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197491.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 203302430 is about 14258.4161111955. The cubic root of 203302430 is about 588.0047799911.

Adding to 203302430 its reverse (34203302), we get a palindrome (237505732).

The spelling of 203302430 in words is "two hundred three million, three hundred two thousand, four hundred thirty".

Divisors: 1 2 5 10 103 206 515 1030 197381 394762 986905 1973810 20330243 40660486 101651215 203302430