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1081020583 is a prime number
BaseRepresentation
bin100000001101111…
…0001000010100111
32210100010112110101
41000123301002213
54203220124313
6255134004531
735534344336
oct10033610247
92710115411
101081020583
11505231845
12262046747
13142c66c66
14a37dbd1d
1564d875dd
hex406f10a7

1081020583 has 2 divisors, whose sum is σ = 1081020584. Its totient is φ = 1081020582.

The previous prime is 1081020581. The next prime is 1081020593. The reversal of 1081020583 is 3850201801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1081020583 - 21 = 1081020581 is a prime.

Together with 1081020581, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081020581) 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 as a sum of consecutive naturals, namely, 540510291 + 540510292.

It is an arithmetic number, because the mean of its divisors is an integer number (540510292).

Almost surely, 21081020583 is an apocalyptic number.

1081020583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081020583 is an equidigital number, since it uses as much as digits as its factorization.

1081020583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1081020583 is about 32878.8774595484. The cubic root of 1081020583 is about 1026.3086463301.

The spelling of 1081020583 in words is "one billion, eighty-one million, twenty thousand, five hundred eighty-three".