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1025048289 = 31073931817
BaseRepresentation
bin111101000110001…
…111111011100001
32122102210211220110
4331012033323201
54044403021124
6245414201533
734254523656
oct7506177341
92572724813
101025048289
11486681a51
122473532a9
1313449a365
149a1cbc2d
155eecd029
hex3d18fee1

1025048289 has 8 divisors (see below), whose sum is σ = 1366901280. Its totient is φ = 683280416.

The previous prime is 1025048287. The next prime is 1025048341. The reversal of 1025048289 is 9828405201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025048289 - 21 = 1025048287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025048281) 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, 16309 + ... + 48125.

It is an arithmetic number, because the mean of its divisors is an integer number (170862660).

Almost surely, 21025048289 is an apocalyptic number.

It is an amenable number.

1025048289 is a deficient number, since it is larger than the sum of its proper divisors (341852991).

1025048289 is a wasteful number, since it uses less digits than its factorization.

1025048289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42559.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1025048289 is about 32016.3753257610. The cubic root of 1025048289 is about 1008.2806708891.

The spelling of 1025048289 in words is "one billion, twenty-five million, forty-eight thousand, two hundred eighty-nine".

Divisors: 1 3 10739 31817 32217 95451 341682763 1025048289