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225893869 = 1931383521
BaseRepresentation
bin11010111011011…
…01110111101101
3120202001121010121
431131231313231
5430312100434
634225404541
75412031465
oct1535556755
9522047117
10225893869
11106569453
1263799751
1337a52316
1422002ba5
1514c717b4
hexd76dded

225893869 has 8 divisors (see below), whose sum is σ = 245454080. Its totient is φ = 207100800.

The previous prime is 225893849. The next prime is 225893903. The reversal of 225893869 is 968398522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225893869 - 211 = 225891821 is a prime.

It is a super-2 number, since 2×2258938692 = 102056080103578322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225893819) 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, 191172 + ... + 192349.

It is an arithmetic number, because the mean of its divisors is an integer number (30681760).

Almost surely, 2225893869 is an apocalyptic number.

It is an amenable number.

225893869 is a deficient number, since it is larger than the sum of its proper divisors (19560211).

225893869 is a wasteful number, since it uses less digits than its factorization.

225893869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383571.

The product of its digits is 1866240, while the sum is 52.

The square root of 225893869 is about 15029.7660993111. The cubic root of 225893869 is about 609.0245711310.

The spelling of 225893869 in words is "two hundred twenty-five million, eight hundred ninety-three thousand, eight hundred sixty-nine".

Divisors: 1 19 31 589 383521 7286899 11889151 225893869