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203005230 = 23513749393
BaseRepresentation
bin11000001100110…
…01110100101110
3112010222201211020
430012121310232
5403432131410
632051035010
75013341661
oct1406316456
9463881736
10203005230
11a465591a
1257b9ba66
133309a14c
141cd656d8
1512c4ea70
hexc199d2e

203005230 has 32 divisors (see below), whose sum is σ = 490778784. Its totient is φ = 53738496.

The previous prime is 203005223. The next prime is 203005237. The reversal of 203005230 is 32500302.

203005230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203005223) and next prime (203005237).

It is a super-2 number, since 2×2030052302 = 82422246814705800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203005237) 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, 20587 + ... + 28806.

It is an arithmetic number, because the mean of its divisors is an integer number (15336837).

Almost surely, 2203005230 is an apocalyptic number.

203005230 is an abundant number, since it is smaller than the sum of its proper divisors (287773554).

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

203005230 is a wasteful number, since it uses less digits than its factorization.

203005230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49540.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 203005230 is about 14247.9903846121. The cubic root of 203005230 is about 587.7181130688.

Adding to 203005230 its reverse (32500302), we get a palindrome (235505532).

The spelling of 203005230 in words is "two hundred three million, five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 137 274 411 685 822 1370 2055 4110 49393 98786 148179 246965 296358 493930 740895 1481790 6766841 13533682 20300523 33834205 40601046 67668410 101502615 203005230