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1082863979 = 1989640369
BaseRepresentation
bin100000010001011…
…0011000101101011
32210110121012010022
41000202303011223
54204203121404
6255241311055
735556122561
oct10042630553
92713535108
101082863979
1150628080a
1226279548b
13143461022
14a3b5ba31
15650ed8be
hex408b316b

1082863979 has 8 divisors (see below), whose sum is σ = 1152666000. Its totient is φ = 1014342912.

The previous prime is 1082863967. The next prime is 1082863987. The reversal of 1082863979 is 9793682801.

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 1082863979 - 24 = 1082863963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1082863979.

It is not an unprimeable number, because it can be changed into a prime (1082863939) 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 7 ways as a sum of consecutive naturals, for example, 318494 + ... + 321875.

It is an arithmetic number, because the mean of its divisors is an integer number (144083250).

Almost surely, 21082863979 is an apocalyptic number.

1082863979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1082863979 is a deficient number, since it is larger than the sum of its proper divisors (69802021).

1082863979 is an equidigital number, since it uses as much as digits as its factorization.

1082863979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640477.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1082863979 is about 32906.8986536258. The cubic root of 1082863979 is about 1026.8916814500.

The spelling of 1082863979 in words is "one billion, eighty-two million, eight hundred sixty-three thousand, nine hundred seventy-nine".

Divisors: 1 19 89 1691 640369 12167011 56992841 1082863979