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1296961 = 3735053
BaseRepresentation
bin100111100101001000001
32102220002121
410330221001
5313000321
643444241
714011141
oct4745101
92386077
101296961
11806476
12526681
13365443
1425a921
151a9441
hex13ca41

1296961 has 4 divisors (see below), whose sum is σ = 1332052. Its totient is φ = 1261872.

The previous prime is 1296949. The next prime is 1296973. The reversal of 1296961 is 1696921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1696921 = 11315017.

It is an interprime number because it is at equal distance from previous prime (1296949) and next prime (1296973).

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 591361 = 840^2 + 769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1296961 - 25 = 1296929 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1296961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1293961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17490 + ... + 17563.

It is an arithmetic number, because the mean of its divisors is an integer number (333013).

21296961 is an apocalyptic number.

It is an amenable number.

1296961 is a deficient number, since it is larger than the sum of its proper divisors (35091).

1296961 is an equidigital number, since it uses as much as digits as its factorization.

1296961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35090.

The product of its digits is 5832, while the sum is 34.

The square root of 1296961 is about 1138.8419556725. The cubic root of 1296961 is about 109.0541772589.

It can be divided in two parts, 1296 and 961, that multiplied together give a square (1245456 = 11162).

The spelling of 1296961 in words is "one million, two hundred ninety-six thousand, nine hundred sixty-one".

Divisors: 1 37 35053 1296961