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68200922738 = 21315881165173
BaseRepresentation
bin111111100001000101…
…110111111001110010
320112001001001211211102
4333201011313321302
52104133414011423
651155302244402
74633040164304
oct774105677162
9215031054742
1068200922738
1126a18708763
1211274426702
13657b7bb5b0
14342dadd974
151b926dac28
hexfe1177e72

68200922738 has 16 divisors (see below), whose sum is σ = 110178325656. Its totient is φ = 31475176320.

The previous prime is 68200922719. The next prime is 68200922749. The reversal of 68200922738 is 83722900286.

It can be written as a sum of positive squares in 4 ways, for example, as 52749686929 + 15451235809 = 229673^2 + 124303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68200922692 and 68200922701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330320 + ... + 495492.

Almost surely, 268200922738 is an apocalyptic number.

68200922738 is a deficient number, since it is larger than the sum of its proper divisors (41977402918).

68200922738 is a wasteful number, since it uses less digits than its factorization.

68200922738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181069.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 68200922738 in words is "sixty-eight billion, two hundred million, nine hundred twenty-two thousand, seven hundred thirty-eight".

Divisors: 1 2 13 26 15881 31762 165173 206453 330346 412906 2147249 4294498 2623112413 5246224826 34100461369 68200922738