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68355224125 = 531943669329
BaseRepresentation
bin111111101010010010…
…011111001000111101
320112102210102011112121
4333222102133020331
52104442414133000
651222453402541
74636622550466
oct775222371075
9215383364477
1068355224125
1126a97818671
12112b8039451
1365a47652a6
1434463c7d6d
151ba1019b1a
hexfea49f23d

68355224125 has 32 divisors (see below), whose sum is σ = 91885622400. Its totient is φ = 50601196800.

The previous prime is 68355224107. The next prime is 68355224243. The reversal of 68355224125 is 52142255386.

It is not a de Polignac number, because 68355224125 - 219 = 68354699837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232540 + ... + 436789.

It is an arithmetic number, because the mean of its divisors is an integer number (2871425700).

Almost surely, 268355224125 is an apocalyptic number.

It is an amenable number.

68355224125 is a deficient number, since it is larger than the sum of its proper divisors (23530398275).

68355224125 is a wasteful number, since it uses less digits than its factorization.

68355224125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669406 (or 669396 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

The spelling of 68355224125 in words is "sixty-eight billion, three hundred fifty-five million, two hundred twenty-four thousand, one hundred twenty-five".

Divisors: 1 5 19 25 43 95 125 215 475 817 1075 2375 4085 5375 20425 102125 669329 3346645 12717251 16733225 28781147 63586255 83666125 143905735 317931275 546841793 719528675 1589656375 2734208965 3597643375 13671044825 68355224125