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1297056 = 25359229
BaseRepresentation
bin100111100101010100000
32102220020010
410330222200
5313001211
643444520
714011335
oct4745240
92386203
101297056
11806552
12526740
133654b7
1425a98c
151a94a6
hex13caa0

1297056 has 48 divisors (see below), whose sum is σ = 3477600. Its totient is φ = 423168.

The previous prime is 1297027. The next prime is 1297057. The reversal of 1297056 is 6507921.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1297057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5550 + ... + 5778.

It is an arithmetic number, because the mean of its divisors is an integer number (72450).

21297056 is an apocalyptic number.

1297056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738800).

1297056 is an abundant number, since it is smaller than the sum of its proper divisors (2180544).

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

1297056 is a wasteful number, since it uses less digits than its factorization.

1297056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1297056 is about 1138.8836639447. The cubic root of 1297056 is about 109.0568398663.

The spelling of 1297056 in words is "one million, two hundred ninety-seven thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 59 96 118 177 229 236 354 458 472 687 708 916 944 1374 1416 1832 1888 2748 2832 3664 5496 5664 7328 10992 13511 21984 27022 40533 54044 81066 108088 162132 216176 324264 432352 648528 1297056