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225938512 = 24431971667
BaseRepresentation
bin11010111011110…
…00110001010000
3120202010212101001
431131320301100
5430320013022
634230351344
75412305602
oct1535706120
9522125331
10225938512
11106599a48
12637bb554
1337a69737
1422015172
1514c7eb27
hexd778c50

225938512 has 40 divisors (see below), whose sum is σ = 450480096. Its totient is φ = 109716096.

The previous prime is 225938501. The next prime is 225938513. The reversal of 225938512 is 215839522.

225938512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2259385122 = 102096422409548288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225938513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134703 + ... + 136369.

Almost surely, 2225938512 is an apocalyptic number.

It is an amenable number.

225938512 is a deficient number, since it is larger than the sum of its proper divisors (224541584).

225938512 is a wasteful number, since it uses less digits than its factorization.

225938512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1909 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 225938512 is about 15031.2511787941. The cubic root of 225938512 is about 609.0646886328.

The spelling of 225938512 in words is "two hundred twenty-five million, nine hundred thirty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 43 86 172 197 344 394 688 788 1576 1667 3152 3334 6668 8471 13336 16942 26672 33884 67768 71681 135536 143362 286724 328399 573448 656798 1146896 1313596 2627192 5254384 14121157 28242314 56484628 112969256 225938512