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1968027589 = 11359498361
BaseRepresentation
bin111010101001101…
…1011011111000101
312002011012011022201
41311103123133011
513012303340324
6523141354501
766524646523
oct16523333705
95064164281
101968027589
1191a99a290
1246b108a31
13254961688
14149535313
15b7b99444
hex754db7c5

1968027589 has 8 divisors (see below), whose sum is σ = 2152923840. Its totient is φ = 1784128800.

The previous prime is 1968027587. The next prime is 1968027599. The reversal of 1968027589 is 9857208691.

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 1968027589 - 21 = 1968027587 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 (1968027587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245232 + ... + 253129.

It is an arithmetic number, because the mean of its divisors is an integer number (269115480).

Almost surely, 21968027589 is an apocalyptic number.

It is an amenable number.

1968027589 is a deficient number, since it is larger than the sum of its proper divisors (184896251).

1968027589 is a wasteful number, since it uses less digits than its factorization.

1968027589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498731.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The square root of 1968027589 is about 44362.4569765923. The cubic root of 1968027589 is about 1253.1711671426.

The spelling of 1968027589 in words is "one billion, nine hundred sixty-eight million, twenty-seven thousand, five hundred eighty-nine".

Divisors: 1 11 359 3949 498361 5481971 178911599 1968027589