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1080423689 = 2364277309
BaseRepresentation
bin100000001100101…
…1111010100001001
32210022000012200012
41000121133110021
54203042024224
6255113121305
735526310202
oct10031372411
92708005605
101080423689
11504964344
122619b9235
13142ab8377
14a36c45a9
1564cba80e
hex4065f509

1080423689 has 8 divisors (see below), whose sum is σ = 1127728320. Its totient is φ = 1033146576.

The previous prime is 1080423683. The next prime is 1080423691. The reversal of 1080423689 is 9863240801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1080423689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1080423683) 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, 144167 + ... + 151475.

It is an arithmetic number, because the mean of its divisors is an integer number (140966040).

Almost surely, 21080423689 is an apocalyptic number.

It is an amenable number.

1080423689 is a deficient number, since it is larger than the sum of its proper divisors (47304631).

1080423689 is an equidigital number, since it uses as much as digits as its factorization.

1080423689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13759.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1080423689 is about 32869.7990410650. The cubic root of 1080423689 is about 1026.1197167612.

The spelling of 1080423689 in words is "one billion, eighty million, four hundred twenty-three thousand, six hundred eighty-nine".

Divisors: 1 23 6427 7309 147821 168107 46974943 1080423689