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1027308641 = 16323812647
BaseRepresentation
bin111101001110110…
…111110001100001
32122121001200112012
4331032313301201
54100442334031
6245534442305
734312656632
oct7516676141
92577050465
101027308641
11487986207
12248063395
13134aac148
149a619889
15602c7b2b
hex3d3b7c61

1027308641 has 8 divisors (see below), whose sum is σ = 1034435904. Its totient is φ = 1020191760.

The previous prime is 1027308631. The next prime is 1027308643. The reversal of 1027308641 is 1468037201.

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 1027308641 - 214 = 1027292257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1027308598 and 1027308607.

It is not an unprimeable number, because it can be changed into a prime (1027308643) 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, 386780 + ... + 389426.

It is an arithmetic number, because the mean of its divisors is an integer number (129304488).

Almost surely, 21027308641 is an apocalyptic number.

It is an amenable number.

1027308641 is a deficient number, since it is larger than the sum of its proper divisors (7127263).

1027308641 is a wasteful number, since it uses less digits than its factorization.

1027308641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1027308641 is about 32051.6558230616. The cubic root of 1027308641 is about 1009.0212526092.

The spelling of 1027308641 in words is "one billion, twenty-seven million, three hundred eight thousand, six hundred forty-one".

Divisors: 1 163 2381 2647 388103 431461 6302507 1027308641