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30001011213 = 310000337071
BaseRepresentation
bin11011111100001100…
…110001101000001101
32212102211012021111110
4123330030301220031
5442420224324323
621440545442233
72111311246665
oct337414615015
985384167443
1030001011213
11117a5874848
125993340379
132aa165a454
14164862d1a5
15ba8c78793
hex6fc331a0d

30001011213 has 4 divisors (see below), whose sum is σ = 40001348288. Its totient is φ = 20000674140.

The previous prime is 30001011211. The next prime is 30001011223. The reversal of 30001011213 is 31211010003.

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 not a de Polignac number, because 30001011213 - 21 = 30001011211 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 (30001011211) 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, 5000168533 + ... + 5000168538.

It is an arithmetic number, because the mean of its divisors is an integer number (10000337072).

Almost surely, 230001011213 is an apocalyptic number.

It is an amenable number.

30001011213 is a deficient number, since it is larger than the sum of its proper divisors (10000337075).

30001011213 is a wasteful number, since it uses less digits than its factorization.

30001011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000337074.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30001011213 its reverse (31211010003), we get a palindrome (61212021216).

The spelling of 30001011213 in words is "thirty billion, one million, eleven thousand, two hundred thirteen".

Divisors: 1 3 10000337071 30001011213