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225281502 = 23212515639
BaseRepresentation
bin11010110110110…
…00010111011110
3120200220111010100
431123120113132
5430133002002
634204321530
75403601245
oct1533302736
9520814110
10225281502
11106190366
12635432a6
1337899684
1421cc395c
1514ba011c
hexd6d85de

225281502 has 12 divisors (see below), whose sum is σ = 488109960. Its totient is φ = 75093828.

The previous prime is 225281491. The next prime is 225281503. The reversal of 225281502 is 205182522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225281503) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6257802 + ... + 6257837.

It is an arithmetic number, because the mean of its divisors is an integer number (40675830).

Almost surely, 2225281502 is an apocalyptic number.

225281502 is an abundant number, since it is smaller than the sum of its proper divisors (262828458).

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

225281502 is a wasteful number, since it uses less digits than its factorization.

225281502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12515647 (or 12515644 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 225281502 is about 15009.3804668947. The cubic root of 225281502 is about 608.4737459997.

The spelling of 225281502 in words is "two hundred twenty-five million, two hundred eighty-one thousand, five hundred two".

Divisors: 1 2 3 6 9 18 12515639 25031278 37546917 75093834 112640751 225281502