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60680444778 = 2323371135821
BaseRepresentation
bin111000100000110101…
…100001101101101010
312210121220221222111200
4320200311201231222
51443233143213103
643513132305030
74245501161502
oct704065415552
9183556858450
1060680444778
1123809590318
12b915912176
135950710735
142d18dbaa02
1518a23610a3
hexe20d61b6a

60680444778 has 12 divisors (see below), whose sum is σ = 131474297058. Its totient is φ = 20226814920.

The previous prime is 60680444767. The next prime is 60680444791. The reversal of 60680444778 is 87744408606.

It can be written as a sum of positive squares in only one way, i.e., 54099503649 + 6580941129 = 232593^2 + 81123^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1685567893 + ... + 1685567928.

Almost surely, 260680444778 is an apocalyptic number.

60680444778 is an abundant number, since it is smaller than the sum of its proper divisors (70793852280).

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

60680444778 is a wasteful number, since it uses less digits than its factorization.

60680444778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371135829 (or 3371135826 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 60680444778 in words is "sixty billion, six hundred eighty million, four hundred forty-four thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 9 18 3371135821 6742271642 10113407463 20226814926 30340222389 60680444778