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1032128481 = 3344042827
BaseRepresentation
bin111101100001010…
…000011111100001
32122221010120002210
4331201100133201
54103211102411
6250230032333
734401642636
oct7541203741
92587116083
101032128481
1148a67844a
122497a86a9
13135aa8c17
149b11218d
156092aca6
hex3d8507e1

1032128481 has 4 divisors (see below), whose sum is σ = 1376171312. Its totient is φ = 688085652.

The previous prime is 1032128453. The next prime is 1032128563. The reversal of 1032128481 is 1848212301.

1032128481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1032128481 - 218 = 1031866337 is a prime.

It is a super-2 number, since 2×10321284812 = 2130578402582734722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1032128401) 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, 172021411 + ... + 172021416.

It is an arithmetic number, because the mean of its divisors is an integer number (344042828).

Almost surely, 21032128481 is an apocalyptic number.

It is an amenable number.

1032128481 is a deficient number, since it is larger than the sum of its proper divisors (344042831).

1032128481 is an equidigital number, since it uses as much as digits as its factorization.

1032128481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344042830.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1032128481 is about 32126.7564656004. The cubic root of 1032128481 is about 1010.5968047493.

The spelling of 1032128481 in words is "one billion, thirty-two million, one hundred twenty-eight thousand, four hundred eighty-one".

Divisors: 1 3 344042827 1032128481