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225555006 = 231132771201
BaseRepresentation
bin11010111000110…
…11001000111110
3120201102101022010
431130123020332
5430220230011
634214232050
75406120525
oct1534331076
9521371263
10225555006
111063578a6
1263655626
1337964001
1421d554bc
1514c061a6
hexd71b23e

225555006 has 32 divisors (see below), whose sum is σ = 457125408. Its totient is φ = 74188800.

The previous prime is 225554983. The next prime is 225555079. The reversal of 225555006 is 600555522.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187206 + ... + 188406.

It is an arithmetic number, because the mean of its divisors is an integer number (14285169).

Almost surely, 2225555006 is an apocalyptic number.

225555006 is an abundant number, since it is smaller than the sum of its proper divisors (231570402).

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

225555006 is a wasteful number, since it uses less digits than its factorization.

225555006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 225555006 is about 15018.4888054691. The cubic root of 225555006 is about 608.7198864946.

The spelling of 225555006 in words is "two hundred twenty-five million, five hundred fifty-five thousand, six".

Divisors: 1 2 3 6 113 226 277 339 554 678 831 1201 1662 2402 3603 7206 31301 62602 93903 135713 187806 271426 332677 407139 665354 814278 998031 1996062 37592501 75185002 112777503 225555006