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222925 = 5237241
BaseRepresentation
bin110110011011001101
3102022210111
4312123031
524113200
64440021
71615633
oct663315
9368714
10222925
1114253a
12a9011
137a611
145b353
15460ba
hex366cd

222925 has 12 divisors (see below), whose sum is σ = 285076. Its totient is φ = 172800.

The previous prime is 222919. The next prime is 222931. The reversal of 222925 is 529222.

It is an interprime number because it is at equal distance from previous prime (222919) and next prime (222931).

It can be written as a sum of positive squares in 6 ways, for example, as 10404 + 212521 = 102^2 + 461^2 .

It is not a de Polignac number, because 222925 - 211 = 220877 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 222896 and 222905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 805 + ... + 1045.

2222925 is an apocalyptic number.

222925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222925 is a deficient number, since it is larger than the sum of its proper divisors (62151).

222925 is a wasteful number, since it uses less digits than its factorization.

222925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 283 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 222925 is about 472.1493407811. The cubic root of 222925 is about 60.6344708341.

The spelling of 222925 in words is "two hundred twenty-two thousand, nine hundred twenty-five".

Divisors: 1 5 25 37 185 241 925 1205 6025 8917 44585 222925