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30669895873 = 49576187189
BaseRepresentation
bin11100100100000100…
…010111100011000001
32221011102211010202101
4130210010113203001
51000302443131443
622031202150401
72134012546021
oct344404274301
987142733671
1030669895873
11120093a1791
125b3b352401
132b7a0c3ca6
1416ad3c7a81
15be785184d
hex7241178c1

30669895873 has 4 divisors (see below), whose sum is σ = 30676088020. Its totient is φ = 30663703728.

The previous prime is 30669895801. The next prime is 30669895901. The reversal of 30669895873 is 37859896603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20275481664 + 10394414209 = 142392^2 + 101953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30669895873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30669895573) 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, 3088638 + ... + 3098551.

It is an arithmetic number, because the mean of its divisors is an integer number (7669022005).

Almost surely, 230669895873 is an apocalyptic number.

It is an amenable number.

30669895873 is a deficient number, since it is larger than the sum of its proper divisors (6192147).

30669895873 is an equidigital number, since it uses as much as digits as its factorization.

30669895873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192146.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 30669895873 in words is "thirty billion, six hundred sixty-nine million, eight hundred ninety-five thousand, eight hundred seventy-three".

Divisors: 1 4957 6187189 30669895873