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1025123255 = 51315771127
BaseRepresentation
bin111101000110100…
…010001110110111
32122102221122201222
4331012202032313
54044412421010
6245415540555
734255255352
oct7506421667
92572848658
101025123255
11486723302
1224738a75b
131344c5510
149a20b299
155eee5355
hex3d1a23b7

1025123255 has 8 divisors (see below), whose sum is σ = 1324774752. Its totient is φ = 757014048.

The previous prime is 1025123213. The next prime is 1025123269. The reversal of 1025123255 is 5523215201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1025123255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7885499 + ... + 7885628.

It is an arithmetic number, because the mean of its divisors is an integer number (165596844).

Almost surely, 21025123255 is an apocalyptic number.

1025123255 is a deficient number, since it is larger than the sum of its proper divisors (299651497).

1025123255 is a wasteful number, since it uses less digits than its factorization.

1025123255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15771145.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1025123255 is about 32017.5460490026. The cubic root of 1025123255 is about 1008.3052501950.

Adding to 1025123255 its reverse (5523215201), we get a palindrome (6548338456).

The spelling of 1025123255 in words is "one billion, twenty-five million, one hundred twenty-three thousand, two hundred fifty-five".

Divisors: 1 5 13 65 15771127 78855635 205024651 1025123255