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1082136493 = 4189296557
BaseRepresentation
bin100000010000000…
…0001011110101101
32210102020020012101
41000200001132231
54204011331433
6255213535101
735550002614
oct10040013655
92712206171
101082136493
11505924189
122624a4491
13143267b69
14a3a0c87b
156500807d
hex408017ad

1082136493 has 8 divisors (see below), whose sum is σ = 1120989240. Its totient is φ = 1043877120.

The previous prime is 1082136491. The next prime is 1082136509. The reversal of 1082136493 is 3946312801.

It can be written as a sum of positive squares in 4 ways, for example, as 6165289 + 1075971204 = 2483^2 + 32802^2 .

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 1082136493 - 21 = 1082136491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082136491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144630 + ... + 151927.

It is an arithmetic number, because the mean of its divisors is an integer number (140123655).

Almost surely, 21082136493 is an apocalyptic number.

It is an amenable number.

1082136493 is a deficient number, since it is larger than the sum of its proper divisors (38852747).

1082136493 is an equidigital number, since it uses as much as digits as its factorization.

1082136493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296687.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1082136493 is about 32895.8430960509. The cubic root of 1082136493 is about 1026.6616689732.

The spelling of 1082136493 in words is "one billion, eighty-two million, one hundred thirty-six thousand, four hundred ninety-three".

Divisors: 1 41 89 3649 296557 12158837 26393573 1082136493