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60646977968 = 2431122272133
BaseRepresentation
bin111000011110110101…
…110111000110110000
312210112120222200200012
4320132311313012300
51443201111243333
643505535114052
74244613543563
oct703665670660
9183476880605
1060646977968
11237a17021a5
12b906672928
1359467c37a5
142d147884da
15189e44ee48
hexe1ed771b0

60646977968 has 20 divisors (see below), whose sum is σ = 121293956928. Its totient is φ = 29345311680.

The previous prime is 60646977931. The next prime is 60646977977. The reversal of 60646977968 is 86977964606.

60646977968 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 60646977898 and 60646977907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61135571 + ... + 61136562.

Almost surely, 260646977968 is an apocalyptic number.

It is an amenable number.

60646977968 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60646977968 is a wasteful number, since it uses less digits than its factorization.

60646977968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122272172 (or 122272166 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 68.

The spelling of 60646977968 in words is "sixty billion, six hundred forty-six million, nine hundred seventy-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 122272133 244544266 489088532 978177064 1956354128 3790436123 7580872246 15161744492 30323488984 60646977968