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30012440232 = 2331778370321
BaseRepresentation
bin11011111100111000…
…010111111010101000
32212110121200221011110
4123330320113322220
5442431141041412
621442034430320
72111510350515
oct337470277250
985417627143
1030012440232
1111801270615
1259971323a0
132aa3b2c598
141649d6630c
15ba9c84d3c
hex6fce17ea8

30012440232 has 32 divisors (see below), whose sum is σ = 75036386880. Its totient is φ = 10003441920.

The previous prime is 30012440231. The next prime is 30012440233. The reversal of 30012440232 is 23204421003.

It is an interprime number because it is at equal distance from previous prime (30012440231) and next prime (30012440233).

It is a junction number, because it is equal to n+sod(n) for n = 30012440199 and 30012440208.

It is not an unprimeable number, because it can be changed into a prime (30012440231) 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, 391632 + ... + 461952.

It is an arithmetic number, because the mean of its divisors is an integer number (2344887090).

Almost surely, 230012440232 is an apocalyptic number.

It is an amenable number.

30012440232 is an abundant number, since it is smaller than the sum of its proper divisors (45023946648).

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

30012440232 is a wasteful number, since it uses less digits than its factorization.

30012440232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88113 (or 88109 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30012440232 its reverse (23204421003), we get a palindrome (53216861235).

The spelling of 30012440232 in words is "thirty billion, twelve million, four hundred forty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 17783 35566 53349 70321 71132 106698 140642 142264 210963 213396 281284 421926 426792 562568 843852 1687704 1250518343 2501036686 3751555029 5002073372 7503110058 10004146744 15006220116 30012440232