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1268672 = 2643461
BaseRepresentation
bin100110101101111000000
32101110021212
410311233000
5311044142
643105252
713532516
oct4655700
92343255
101268672
11797199
12512228
133555c2
142504b6
151a0d82
hex135bc0

1268672 has 28 divisors (see below), whose sum is σ = 2581656. Its totient is φ = 618240.

The previous prime is 1268669. The next prime is 1268681. The reversal of 1268672 is 2768621.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2522 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (92202).

21268672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290828).

1268672 is an abundant number, since it is smaller than the sum of its proper divisors (1312984).

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

1268672 is an equidigital number, since it uses as much as digits as its factorization.

1268672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 506 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1268672 is about 1126.3534081273. The cubic root of 1268672 is about 108.2554538230.

The spelling of 1268672 in words is "one million, two hundred sixty-eight thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 43 64 86 172 344 461 688 922 1376 1844 2752 3688 7376 14752 19823 29504 39646 79292 158584 317168 634336 1268672