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30650164657 = 74378594951
BaseRepresentation
bin11100100010111001…
…000110010110110001
32221010001200200121121
4130202321012112301
51000232420232112
622025215222241
72133353046430
oct344271062661
987101620547
1030650164657
1111aa92453a2
125b34817981
132b75ca6008
1416aa92d117
15be5c55407
hex722e465b1

30650164657 has 4 divisors (see below), whose sum is σ = 35028759616. Its totient is φ = 26271569700.

The previous prime is 30650164547. The next prime is 30650164667. The reversal of 30650164657 is 75646105603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75646105603 = 283726664119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30650164657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30650164667) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2189297469 + ... + 2189297482.

It is an arithmetic number, because the mean of its divisors is an integer number (8757189904).

Almost surely, 230650164657 is an apocalyptic number.

It is an amenable number.

30650164657 is a deficient number, since it is larger than the sum of its proper divisors (4378594959).

30650164657 is an equidigital number, since it uses as much as digits as its factorization.

30650164657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378594958.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 30650164657 in words is "thirty billion, six hundred fifty million, one hundred sixty-four thousand, six hundred fifty-seven".

Divisors: 1 7 4378594951 30650164657