Search a number
-
+
30672471029 = 63794808351
BaseRepresentation
bin11100100100001110…
…001100001111110101
32221011121122222012112
4130210032030033311
51000304123033104
622031333300405
72134043462534
oct344416141765
987147588175
1030672471029
111200a8a0512
125b40194705
132b7a7b6155
1416ad89831b
15be7bae86e
hex72438c3f5

30672471029 has 4 divisors (see below), whose sum is σ = 30677285760. Its totient is φ = 30667656300.

The previous prime is 30672471023. The next prime is 30672471079. The reversal of 30672471029 is 92017427603.

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.

It is a cyclic number.

It is not a de Polignac number, because 30672471029 - 228 = 30404035573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30672471023) 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, 2397797 + ... + 2410554.

It is an arithmetic number, because the mean of its divisors is an integer number (7669321440).

Almost surely, 230672471029 is an apocalyptic number.

It is an amenable number.

30672471029 is a deficient number, since it is larger than the sum of its proper divisors (4814731).

30672471029 is an equidigital number, since it uses as much as digits as its factorization.

30672471029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814730.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 30672471029 in words is "thirty billion, six hundred seventy-two million, four hundred seventy-one thousand, twenty-nine".

Divisors: 1 6379 4808351 30672471029