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203025424 = 24721715233
BaseRepresentation
bin11000001100111…
…10110000010000
3112011000202112011
430012132300100
5403433303144
632051312304
75013454600
oct1406366020
9464022464
10203025424
11a466a008
1257bab694
13330a63b4
141cd6cc00
1512c55a34
hexc19ec10

203025424 has 60 divisors (see below), whose sum is σ = 484532604. Its totient is φ = 81887232.

The previous prime is 203025421. The next prime is 203025437. The reversal of 203025424 is 424520302.

It can be written as a sum of positive squares in 2 ways, for example, as 92775424 + 110250000 = 9632^2 + 10500^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203025395 and 203025404.

It is not an unprimeable number, because it can be changed into a prime (203025421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5712 + ... + 20944.

Almost surely, 2203025424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203025424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242266302).

203025424 is an abundant number, since it is smaller than the sum of its proper divisors (281507180).

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

203025424 is a wasteful number, since it uses less digits than its factorization.

203025424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15272 (or 15259 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 203025424 is about 14248.6990283324. The cubic root of 203025424 is about 587.7376002285.

Adding to 203025424 its reverse (424520302), we get a palindrome (627545726).

The spelling of 203025424 in words is "two hundred three million, twenty-five thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 17 28 34 49 56 68 98 112 119 136 196 238 272 392 476 784 833 952 1666 1904 3332 6664 13328 15233 30466 60932 106631 121864 213262 243728 258961 426524 517922 746417 853048 1035844 1492834 1706096 1812727 2071688 2985668 3625454 4143376 5971336 7250908 11942672 12689089 14501816 25378178 29003632 50756356 101512712 203025424