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1297108 = 22232613
BaseRepresentation
bin100111100101011010100
32102220022001
410330223110
5313001413
643445044
714011441
oct4745324
92386261
101297108
1180659a
12526784
13365527
1425a9c8
151a94dd
hex13cad4

1297108 has 18 divisors (see below), whose sum is σ = 2376794. Its totient is φ = 619344.

The previous prime is 1297103. The next prime is 1297123. The reversal of 1297108 is 8017921.

It can be written as a sum of positive squares in only one way, i.e., 685584 + 611524 = 828^2 + 782^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1810 + ... + 2422.

21297108 is an apocalyptic number.

It is an amenable number.

1297108 is a deficient number, since it is larger than the sum of its proper divisors (1079686).

1297108 is a wasteful number, since it uses less digits than its factorization.

1297108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1297108 is about 1138.9064930889. The cubic root of 1297108 is about 109.0582972385.

The spelling of 1297108 in words is "one million, two hundred ninety-seven thousand, one hundred eight".

Divisors: 1 2 4 23 46 92 529 613 1058 1226 2116 2452 14099 28198 56396 324277 648554 1297108