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30030020004 = 2232502501667
BaseRepresentation
bin11011111101111011…
…011011110110100100
32212111211210002002010
4123331323123312210
5443000141120004
621443503314220
72112112646505
oct337573336644
985454702063
1030030020004
1111810188556
1259a0bab970
132aa767620a
14164c420bac
15bab5a8a89
hex6fdedbda4

30030020004 has 12 divisors (see below), whose sum is σ = 70070046704. Its totient is φ = 10010006664.

The previous prime is 30030019991. The next prime is 30030020017. The reversal of 30030020004 is 40002003003.

It is an interprime number because it is at equal distance from previous prime (30030019991) and next prime (30030020017).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 2502501667 = 30030020004 / (3 + 0 + 0 + 3 + 0 + 0 + 2 + 0 + 0 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251250822 + ... + 1251250845.

Almost surely, 230030020004 is an apocalyptic number.

It is an amenable number.

30030020004 is an abundant number, since it is smaller than the sum of its proper divisors (40040026700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30030020004 is a wasteful number, since it uses less digits than its factorization.

30030020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502501674 (or 2502501672 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30030020004 its reverse (40002003003), we get a palindrome (70032023007).

The spelling of 30030020004 in words is "thirty billion, thirty million, twenty thousand, four".

Divisors: 1 2 3 4 6 12 2502501667 5005003334 7507505001 10010006668 15015010002 30030020004