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68602246889 = 116236567899
BaseRepresentation
bin111111111001000000…
…110011011011101001
320120002000020020001212
4333321000303123221
52110444133400024
651303200122505
74646012322461
oct777100633351
9216060206055
1068602246889
11271041a8510
1211366906435
1366139a47c7
14346b12aba1
151bb7a61a0e
hexff90336e9

68602246889 has 4 divisors (see below), whose sum is σ = 74838814800. Its totient is φ = 62365678980.

The previous prime is 68602246883. The next prime is 68602246931. The reversal of 68602246889 is 98864220686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68602246889 - 220 = 68601198313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68602246883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118283939 + ... + 3118283960.

It is an arithmetic number, because the mean of its divisors is an integer number (18709703700).

Almost surely, 268602246889 is an apocalyptic number.

It is an amenable number.

68602246889 is a deficient number, since it is larger than the sum of its proper divisors (6236567911).

68602246889 is a wasteful number, since it uses less digits than its factorization.

68602246889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236567910.

The product of its (nonzero) digits is 15925248, while the sum is 59.

The spelling of 68602246889 in words is "sixty-eight billion, six hundred two million, two hundred forty-six thousand, eight hundred eighty-nine".

Divisors: 1 11 6236567899 68602246889