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225245230 = 25753109557
BaseRepresentation
bin11010110110011…
…11100000101110
3120200211122100221
431123033200232
5430130321410
634203441554
75403360430
oct1533174056
9520748327
10225245230
11106166091
12635262ba
1337886002
1421cb4650
1514b944da
hexd6cf82e

225245230 has 64 divisors (see below), whose sum is σ = 477290880. Its totient is φ = 74939904.

The previous prime is 225245219. The next prime is 225245239. The reversal of 225245230 is 32542522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225245195 and 225245204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225245239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404112 + ... + 404668.

It is an arithmetic number, because the mean of its divisors is an integer number (7457670).

Almost surely, 2225245230 is an apocalyptic number.

225245230 is an abundant number, since it is smaller than the sum of its proper divisors (252045650).

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

225245230 is a wasteful number, since it uses less digits than its factorization.

225245230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 225245230 is about 15008.1721072221. The cubic root of 225245230 is about 608.4410879784.

Adding to 225245230 its reverse (32542522), we get a palindrome (257787752).

The spelling of 225245230 in words is "two hundred twenty-five million, two hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 109 218 265 371 530 545 557 742 763 1090 1114 1526 1855 2785 3710 3815 3899 5570 5777 7630 7798 11554 19495 28885 29521 38990 40439 57770 59042 60713 80878 121426 147605 202195 206647 295210 303565 404390 413294 424991 607130 849982 1033235 2066470 2124955 3217789 4249910 6435578 16088945 22524523 32177890 45049046 112622615 225245230