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68771092 = 22131322521
BaseRepresentation
bin1000001100101…
…01110100010100
311210101221012111
410012111310110
5120101133332
610454000404
71463354545
oct406256424
9153357174
1068771092
1135901815
121b046104
131132b370
1491c24cc
156086947
hex4195d14

68771092 has 12 divisors (see below), whose sum is σ = 129607156. Its totient is φ = 31740480.

The previous prime is 68771077. The next prime is 68771149. The reversal of 68771092 is 29017786.

It can be written as a sum of positive squares in 2 ways, for example, as 32216976 + 36554116 = 5676^2 + 6046^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661209 + ... + 661312.

Almost surely, 268771092 is an apocalyptic number.

It is an amenable number.

68771092 is a deficient number, since it is larger than the sum of its proper divisors (60836064).

68771092 is a wasteful number, since it uses less digits than its factorization.

68771092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322538 (or 1322536 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 68771092 is about 8292.8337738074. The cubic root of 68771092 is about 409.7025246514.

The spelling of 68771092 in words is "sixty-eight million, seven hundred seventy-one thousand, ninety-two".

Divisors: 1 2 4 13 26 52 1322521 2645042 5290084 17192773 34385546 68771092