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1226028 = 223711439
BaseRepresentation
bin100101011010100101100
32022021210110
410223110230
5303213103
642140020
713264266
oct4532454
92267713
101226028
11768151
124b1610
1333c07b
1423cb36
15193403
hex12b52c

1226028 has 24 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 402640.

The previous prime is 1226011. The next prime is 1226041. The reversal of 1226028 is 8206221.

It is a junction number, because it is equal to n+sod(n) for n = 1225995 and 1226013.

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, 133 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

21226028 is an apocalyptic number.

It is an amenable number.

1226028 is an abundant number, since it is smaller than the sum of its proper divisors (1677012).

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

1226028 is a wasteful number, since it uses less digits than its factorization.

1226028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1226028 is about 1107.2614867320. The cubic root of 1226028 is about 107.0286702222.

The spelling of 1226028 in words is "one million, two hundred twenty-six thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 1439 2878 4317 5756 8634 17268 102169 204338 306507 408676 613014 1226028