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1029130255 = 5205826051
BaseRepresentation
bin111101010101110…
…100100000001111
32122201111020022101
4331111310200033
54101424132010
6250041455531
734334314516
oct7525644017
92581436271
101029130255
11488a0a87a
122487a15a7
1313529931a
149a97167d
156053773a
hex3d57480f

1029130255 has 4 divisors (see below), whose sum is σ = 1234956312. Its totient is φ = 823304200.

The previous prime is 1029130253. The next prime is 1029130301. The reversal of 1029130255 is 5520319201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5520319201 = 43912574759.

It is not a de Polignac number, because 1029130255 - 21 = 1029130253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029130253) 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, 102913021 + ... + 102913030.

It is an arithmetic number, because the mean of its divisors is an integer number (308739078).

Almost surely, 21029130255 is an apocalyptic number.

1029130255 is a deficient number, since it is larger than the sum of its proper divisors (205826057).

1029130255 is an equidigital number, since it uses as much as digits as its factorization.

1029130255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205826056.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1029130255 is about 32080.0600841083. The cubic root of 1029130255 is about 1009.6172961067.

Adding to 1029130255 its reverse (5520319201), we get a palindrome (6549449456).

The spelling of 1029130255 in words is "one billion, twenty-nine million, one hundred thirty thousand, two hundred fifty-five".

Divisors: 1 5 205826051 1029130255