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30006710471 = 145120680021
BaseRepresentation
bin11011111100100010…
…100001000011000111
32212110012220211102002
4123330202201003013
5442423204213341
621441311535515
72111410554623
oct337442410307
985405824362
1030006710471
11117a9007781
12599522a59b
132aa28a45aa
1416492b4183
15ba950229b
hex6fc8a10c7

30006710471 has 4 divisors (see below), whose sum is σ = 30027391944. Its totient is φ = 29986029000.

The previous prime is 30006710449. The next prime is 30006710491. The reversal of 30006710471 is 17401760003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17401760003 = 23756598261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30006710471 is a prime.

It is a super-3 number, since 3×300067104713 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30006710441) 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, 10338560 + ... + 10341461.

It is an arithmetic number, because the mean of its divisors is an integer number (7506847986).

Almost surely, 230006710471 is an apocalyptic number.

30006710471 is a deficient number, since it is larger than the sum of its proper divisors (20681473).

30006710471 is a wasteful number, since it uses less digits than its factorization.

30006710471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20681472.

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 30006710471 in words is "thirty billion, six million, seven hundred ten thousand, four hundred seventy-one".

Divisors: 1 1451 20680021 30006710471