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222450325 = 52107137607
BaseRepresentation
bin11010100001001…
…01001010010101
3120111120122110221
431100211022111
5423421402300
634023514341
75340540136
oct1520451225
9514518427
10222450325
11104627249
12625b89b1
1337117b16
1421787c8d
15147e131a
hexd425295

222450325 has 24 divisors (see below), whose sum is σ = 280910592. Its totient is φ = 174721920.

The previous prime is 222450323. The next prime is 222450343. The reversal of 222450325 is 523054222.

It is a happy number.

It is not a de Polignac number, because 222450325 - 21 = 222450323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222450325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222450323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366172 + ... + 366778.

It is an arithmetic number, because the mean of its divisors is an integer number (11704608).

Almost surely, 2222450325 is an apocalyptic number.

222450325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222450325 is a deficient number, since it is larger than the sum of its proper divisors (58460267).

222450325 is a wasteful number, since it uses less digits than its factorization.

222450325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

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

The square root of 222450325 is about 14914.7686874453. The cubic root of 222450325 is about 605.9140385354.

The spelling of 222450325 in words is "two hundred twenty-two million, four hundred fifty thousand, three hundred twenty-five".

Divisors: 1 5 25 107 137 535 607 685 2675 3035 3425 14659 15175 64949 73295 83159 324745 366475 415795 1623725 2078975 8898013 44490065 222450325