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203413430 = 25111997327
BaseRepresentation
bin11000001111111…
…01011110110110
3112011202110202202
430013331132312
5404033212210
632103504502
75016662033
oct1407753666
9464673682
10203413430
11a4904580
1258158132
13331b0b9c
141d03038a
1512cd09a5
hexc1fd7b6

203413430 has 32 divisors (see below), whose sum is σ = 420456960. Its totient is φ = 70074720.

The previous prime is 203413429. The next prime is 203413433. The reversal of 203413430 is 34314302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203413433) 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, 46574 + ... + 50753.

It is an arithmetic number, because the mean of its divisors is an integer number (13139280).

Almost surely, 2203413430 is an apocalyptic number.

203413430 is an abundant number, since it is smaller than the sum of its proper divisors (217043530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203413430 is a wasteful number, since it uses less digits than its factorization.

203413430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97364.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203413430 is about 14262.3080179892. The cubic root of 203413430 is about 588.1117743765. Note that the first 3 decimals are identical.

Adding to 203413430 its reverse (34314302), we get a palindrome (237727732).

The spelling of 203413430 in words is "two hundred three million, four hundred thirteen thousand, four hundred thirty".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 97327 194654 486635 973270 1070597 1849213 2141194 3698426 5352985 9246065 10705970 18492130 20341343 40682686 101706715 203413430