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225031070 = 251111711747
BaseRepresentation
bin11010110100110…
…11001110011110
3120200102202121002
431122123032132
5430101443240
634155110302
75401506155
oct1532331636
9520382532
10225031070
1110602a1a0
1263442392
133780c6a4
1421c5a59c
1514b50d15
hexd69b39e

225031070 has 32 divisors (see below), whose sum is σ = 442509696. Its totient is φ = 81712800.

The previous prime is 225031069. The next prime is 225031087. The reversal of 225031070 is 70130522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127937 + ... + 129683.

It is an arithmetic number, because the mean of its divisors is an integer number (13828428).

Almost surely, 2225031070 is an apocalyptic number.

225031070 is a deficient number, since it is larger than the sum of its proper divisors (217478626).

225031070 is a wasteful number, since it uses less digits than its factorization.

225031070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 225031070 is about 15001.0356309156. The cubic root of 225031070 is about 608.2481944193.

Adding to 225031070 its reverse (70130522), we get a palindrome (295161592).

The spelling of 225031070 in words is "two hundred twenty-five million, thirty-one thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 1171 1747 2342 3494 5855 8735 11710 12881 17470 19217 25762 38434 64405 96085 128810 192170 2045737 4091474 10228685 20457370 22503107 45006214 112515535 225031070