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225702894 = 2371529819
BaseRepresentation
bin11010111001111…
…11001111101110
3120201200220011110
431130333033232
5430234443034
634221332450
75410304634
oct1534771756
9521626143
10225702894
11106448a1a
1263707126
13379b6411
1421d93354
1514c34de9
hexd73f3ee

225702894 has 16 divisors (see below), whose sum is σ = 457764480. Its totient is φ = 74174520.

The previous prime is 225702889. The next prime is 225702929. The reversal of 225702894 is 498207522.

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 7 ways as a sum of consecutive naturals, for example, 264484 + ... + 265335.

It is an arithmetic number, because the mean of its divisors is an integer number (28610280).

Almost surely, 2225702894 is an apocalyptic number.

225702894 is an abundant number, since it is smaller than the sum of its proper divisors (232061586).

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

225702894 is a wasteful number, since it uses less digits than its factorization.

225702894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529895.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 225702894 is about 15023.4115300088. The cubic root of 225702894 is about 608.8528957334.

The spelling of 225702894 in words is "two hundred twenty-five million, seven hundred two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 71 142 213 426 529819 1059638 1589457 3178914 37617149 75234298 112851447 225702894