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30019242239 = 74663919679
BaseRepresentation
bin11011111101010010…
…010100100011111111
32212111002111111202122
4123331102110203333
5442434411222424
621442440313155
72111622230450
oct337522244377
985432444678
1030019242239
1111805097008
1259994727bb
132aa537163c
14164ac17127
15baa67a45e
hex6fd4948ff

30019242239 has 8 divisors (see below), whose sum is σ = 34315100160. Its totient is φ = 25725233016.

The previous prime is 30019242229. The next prime is 30019242257. The reversal of 30019242239 is 93224291003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-30019242239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30019242199 and 30019242208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30019242229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427199 + ... + 492480.

It is an arithmetic number, because the mean of its divisors is an integer number (4289387520).

Almost surely, 230019242239 is an apocalyptic number.

30019242239 is a deficient number, since it is larger than the sum of its proper divisors (4295857921).

30019242239 is an equidigital number, since it uses as much as digits as its factorization.

30019242239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924349.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 30019242239 in words is "thirty billion, nineteen million, two hundred forty-two thousand, two hundred thirty-nine".

Divisors: 1 7 4663 32641 919679 6437753 4288463177 30019242239