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30664445930 = 253066444593
BaseRepresentation
bin11100100011101111…
…100100111111101010
32221011001120020211122
4130203233210333222
51000300044232210
622030445255242
72133615326666
oct344357447752
987131506748
1030664445930
111200630a0a8
125b39564522
132b78c36481
1416ac7a98a6
15be7126b55
hex723be4fea

30664445930 has 8 divisors (see below), whose sum is σ = 55196002692. Its totient is φ = 12265778368.

The previous prime is 30664445921. The next prime is 30664445939. The reversal of 30664445930 is 3954446603.

It is an interprime number because it is at equal distance from previous prime (30664445921) and next prime (30664445939).

It can be written as a sum of positive squares in 2 ways, for example, as 30186630049 + 477815881 = 173743^2 + 21859^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30664445939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533222287 + ... + 1533222306.

Almost surely, 230664445930 is an apocalyptic number.

30664445930 is a deficient number, since it is larger than the sum of its proper divisors (24531556762).

30664445930 is a wasteful number, since it uses less digits than its factorization.

30664445930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066444600.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 30664445930 in words is "thirty billion, six hundred sixty-four million, four hundred forty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 3066444593 6132889186 15332222965 30664445930