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68306430038 = 27111279346793
BaseRepresentation
bin111111100111011000…
…010110100001010110
320112022101121011122012
4333213120112201112
52104342421230123
651213551504222
74635461034620
oct774730264126
9215271534565
1068306430038
1126a72220980
12112a3828072
13659760ca52
14343db25c10
151b9bacc378
hexfe7616856

68306430038 has 32 divisors (see below), whose sum is σ = 127842140160. Its totient is φ = 26592010560.

The previous prime is 68306430029. The next prime is 68306430209. The reversal of 68306430038 is 83003460386.

It is a junction number, because it is equal to n+sod(n) for n = 68306429977 and 68306430004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23570 + ... + 370362.

It is an arithmetic number, because the mean of its divisors is an integer number (3995066880).

Almost surely, 268306430038 is an apocalyptic number.

68306430038 is a deficient number, since it is larger than the sum of its proper divisors (59535710122).

68306430038 is a wasteful number, since it uses less digits than its factorization.

68306430038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348092.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 68306430038 in words is "sixty-eight billion, three hundred six million, four hundred thirty thousand, thirty-eight".

Divisors: 1 2 7 11 14 22 77 154 1279 2558 8953 14069 17906 28138 98483 196966 346793 693586 2427551 3814723 4855102 7629446 26703061 53406122 443548247 887096494 3104837729 4879030717 6209675458 9758061434 34153215019 68306430038