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68061588984 = 2333315099949
BaseRepresentation
bin111111011000110010…
…010110110111111000
320111200022212221212000
4333120302112313320
52103342231321414
651133404021000
74626425650404
oct773062266770
9214608787760
1068061588984
1126956aa11a4
1211235831760
13655898559c
1434193d0104
151b85366b09
hexfd8c96df8

68061588984 has 32 divisors (see below), whose sum is σ = 189059970000. Its totient is φ = 22687196256.

The previous prime is 68061588961. The next prime is 68061589027. The reversal of 68061588984 is 48988516086.

68061588984 is a `hidden beast` number, since 6 + 8 + 0 + 615 + 8 + 8 + 9 + 8 + 4 = 666.

It is a congruent number.

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, 157549759 + ... + 157550190.

Almost surely, 268061588984 is an apocalyptic number.

It is an amenable number.

68061588984 is an abundant number, since it is smaller than the sum of its proper divisors (120998381016).

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

68061588984 is a wasteful number, since it uses less digits than its factorization.

68061588984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315099964 (or 315099954 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 68061588984 in words is "sixty-eight billion, sixty-one million, five hundred eighty-eight thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 315099949 630199898 945299847 1260399796 1890599694 2520799592 2835899541 3781199388 5671799082 7562398776 8507698623 11343598164 17015397246 22687196328 34030794492 68061588984