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1296920 = 23532423
BaseRepresentation
bin100111100101000011000
32102220001002
410330220120
5313000140
643444132
714011052
oct4745030
92386032
101296920
11806439
12526648
13365411
1425a8d2
151a9415
hex13ca18

1296920 has 16 divisors (see below), whose sum is σ = 2918160. Its totient is φ = 518752.

The previous prime is 1296907. The next prime is 1296929. The reversal of 1296920 is 296921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296929) 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, 16172 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (182385).

21296920 is an apocalyptic number.

1296920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296920 is an abundant number, since it is smaller than the sum of its proper divisors (1621240).

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

1296920 is a wasteful number, since it uses less digits than its factorization.

1296920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32434 (or 32430 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1296920 is about 1138.8239547884. The cubic root of 1296920 is about 109.0530280934.

Subtracting from 1296920 its reverse (296921), we obtain a palindrome (999999).

The spelling of 1296920 in words is "one million, two hundred ninety-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 32423 64846 129692 162115 259384 324230 648460 1296920