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1030255120 = 24512878189
BaseRepresentation
bin111101011010000…
…111001000010000
32122210121101100001
4331122013020100
54102221130440
6250121535344
734350011146
oct7532071020
92583541301
101030255120
11489608a14
12249044554
131355a131b
149ab85596
15606aab9a
hex3d687210

1030255120 has 20 divisors (see below), whose sum is σ = 2395343340. Its totient is φ = 412102016.

The previous prime is 1030255111. The next prime is 1030255129. The reversal of 1030255120 is 215520301.

It is an interprime number because it is at equal distance from previous prime (1030255111) and next prime (1030255129).

It can be written as a sum of positive squares in 2 ways, for example, as 326308096 + 703947024 = 18064^2 + 26532^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10302551202 = 2122851224572428800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1030255129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6439015 + ... + 6439174.

It is an arithmetic number, because the mean of its divisors is an integer number (119767167).

Almost surely, 21030255120 is an apocalyptic number.

1030255120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030255120 is an abundant number, since it is smaller than the sum of its proper divisors (1365088220).

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

1030255120 is a wasteful number, since it uses less digits than its factorization.

1030255120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878202 (or 12878196 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1030255120 is about 32097.5874482803. The cubic root of 1030255120 is about 1009.9850077832.

Adding to 1030255120 its reverse (215520301), we get a palindrome (1245775421).

The spelling of 1030255120 in words is "one billion, thirty million, two hundred fifty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 12878189 25756378 51512756 64390945 103025512 128781890 206051024 257563780 515127560 1030255120