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30012013224 = 23322271836271
BaseRepresentation
bin11011111100110110…
…101111101010101000
32212110120220020102100
4123330312233222220
5442431033410344
621442021333400
72111503621554
oct337466575250
985416806370
1030012013224
1111800aa9816
125996b67260
132aa3a1010b
141649c94864
15ba9bed569
hex6fcdafaa8

30012013224 has 48 divisors (see below), whose sum is σ = 81640653120. Its totient is φ = 9959928480.

The previous prime is 30012013223. The next prime is 30012013267. The reversal of 30012013224 is 42231021003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30012013197 and 30012013206.

It is not an unprimeable number, because it can be changed into a prime (30012013223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901792 + ... + 934479.

It is an arithmetic number, because the mean of its divisors is an integer number (1700846940).

Almost surely, 230012013224 is an apocalyptic number.

It is an amenable number.

30012013224 is an abundant number, since it is smaller than the sum of its proper divisors (51628639896).

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

30012013224 is a wasteful number, since it uses less digits than its factorization.

30012013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836510 (or 1836503 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30012013224 its reverse (42231021003), we get a palindrome (72243034227).

The spelling of 30012013224 in words is "thirty billion, twelve million, thirteen thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 227 454 681 908 1362 1816 2043 2724 4086 5448 8172 16344 1836271 3672542 5508813 7345084 11017626 14690168 16526439 22035252 33052878 44070504 66105756 132211512 416833517 833667034 1250500551 1667334068 2501001102 3334668136 3751501653 5002002204 7503003306 10004004408 15006006612 30012013224