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2237285 = 51726321
BaseRepresentation
bin1000100010001101100101
311012122222102
420202031211
51033043120
6115541445
725005461
oct10421545
94178872
102237285
1112989a6
128ba885
1360444b
144234a1
152e2d75
hex222365

2237285 has 8 divisors (see below), whose sum is σ = 2842776. Its totient is φ = 1684480.

The previous prime is 2237267. The next prime is 2237293. The reversal of 2237285 is 5827322.

It can be written as a sum of positive squares in 4 ways, for example, as 1014049 + 1223236 = 1007^2 + 1106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2237285 - 210 = 2236261 is a prime.

It is a d-powerful number, because it can be written as 213 + 217 + 36 + 7 + 221 + 8 + 53 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13076 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (355347).

22237285 is an apocalyptic number.

It is an amenable number.

2237285 is a deficient number, since it is larger than the sum of its proper divisors (605491).

2237285 is a wasteful number, since it uses less digits than its factorization.

2237285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26343.

The product of its digits is 6720, while the sum is 29.

The square root of 2237285 is about 1495.7556618646. The cubic root of 2237285 is about 130.7897682676.

The spelling of 2237285 in words is "two million, two hundred thirty-seven thousand, two hundred eighty-five".

Divisors: 1 5 17 85 26321 131605 447457 2237285