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77000041 = 8929721
BaseRepresentation
bin1001001011011…
…10110101101001
312100220000012101
410211232311221
5124203000131
611350213401
71623326626
oct445566551
9170800171
1077000041
113a5122a8
1221954261
1312c4ca71
14a32534d
156b5ec61
hex496ed69

77000041 has 6 divisors (see below), whose sum is σ = 77882942. Its totient is φ = 76127040.

The previous prime is 77000039. The next prime is 77000047. The reversal of 77000041 is 14000077.

It can be written as a sum of positive squares in 3 ways, for example, as 4818025 + 72182016 = 2195^2 + 8496^2 .

It is not a de Polignac number, because 77000041 - 21 = 77000039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76999982 and 77000018.

It is not an unprimeable number, because it can be changed into a prime (77000047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3061 + ... + 12781.

Almost surely, 277000041 is an apocalyptic number.

It is an amenable number.

77000041 is a deficient number, since it is larger than the sum of its proper divisors (882901).

77000041 is an frugal number, since it uses more digits than its factorization.

77000041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899 (or 9810 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 77000041 is about 8774.9667235836. The cubic root of 77000041 is about 425.4321620211.

The spelling of 77000041 in words is "seventy-seven million, forty-one", and thus it is an aban number and an uban number.

Divisors: 1 89 7921 9721 865169 77000041