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1301968 = 2481373
BaseRepresentation
bin100111101110111010000
32110010222001
410331313100
5313130333
643523344
714031553
oct4756720
92403861
101301968
1180a208
12529554
133677c5
1425c69a
151aab7d
hex13ddd0

1301968 has 10 divisors (see below), whose sum is σ = 2522594. Its totient is φ = 650976.

The previous prime is 1301959. The next prime is 1302017. The reversal of 1301968 is 8691031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 29584 = 1128^2 + 172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40671 + ... + 40702.

21301968 is an apocalyptic number.

It is an amenable number.

1301968 is a deficient number, since it is larger than the sum of its proper divisors (1220626).

1301968 is an equidigital number, since it uses as much as digits as its factorization.

1301968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81381 (or 81375 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1301968 is about 1141.0381238153. The cubic root of 1301968 is about 109.1943339025.

Adding to 1301968 its reverse (8691031), we get a palindrome (9992999).

The spelling of 1301968 in words is "one million, three hundred one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 81373 162746 325492 650984 1301968