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30777760117 = 132981638621
BaseRepresentation
bin11100101010011111…
…110101100101110101
32221102221210012200101
4130222133311211311
51001013101310432
622050014114101
72136462434026
oct345237654565
987387705611
1030777760117
1112064274795
125b6b4ab931
132b9655c1a0
1416bd864c4d
15c0205b4e7
hex72a7f5975

30777760117 has 8 divisors (see below), whose sum is σ = 34288221240. Its totient is φ = 27430576320.

The previous prime is 30777760093. The next prime is 30777760133. The reversal of 30777760117 is 71106777703.

It can be written as a sum of positive squares in 4 ways, for example, as 9605764081 + 21171996036 = 98009^2 + 145506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30777760117 - 215 = 30777727349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30777760217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40818934 + ... + 40819687.

It is an arithmetic number, because the mean of its divisors is an integer number (4286027655).

Almost surely, 230777760117 is an apocalyptic number.

It is an amenable number.

30777760117 is a deficient number, since it is larger than the sum of its proper divisors (3510461123).

30777760117 is a wasteful number, since it uses less digits than its factorization.

30777760117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81638663.

The product of its (nonzero) digits is 302526, while the sum is 46.

The spelling of 30777760117 in words is "thirty billion, seven hundred seventy-seven million, seven hundred sixty thousand, one hundred seventeen".

Divisors: 1 13 29 377 81638621 1061302073 2367520009 30777760117