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1240228 = 221171397
BaseRepresentation
bin100101110110010100100
32100000021101
410232302210
5304141403
642325444
713353553
oct4566244
92300241
101240228
11777890
124b9884
13345682
14243d9a
1519771d
hex12eca4

1240228 has 24 divisors (see below), whose sum is σ = 2407104. Its totient is φ = 554400.

The previous prime is 1240219. The next prime is 1240231. The reversal of 1240228 is 8220421.

1240228 is nontrivially palindromic in base 5.

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, 2926 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (100296).

21240228 is an apocalyptic number.

It is an amenable number.

1240228 is a deficient number, since it is larger than the sum of its proper divisors (1166876).

1240228 is a wasteful number, since it uses less digits than its factorization.

1240228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1240228 is about 1113.6552428826. The cubic root of 1240228 is about 107.4402913419.

Adding to 1240228 its reverse (8220421), we get a palindrome (9460649).

The spelling of 1240228 in words is "one million, two hundred forty thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 22 44 71 142 284 397 781 794 1562 1588 3124 4367 8734 17468 28187 56374 112748 310057 620114 1240228