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30031112222 = 215015556111
BaseRepresentation
bin11011111101111111…
…100110100000011110
32212111220211120022122
4123331333212200132
5443000431042342
621443542542542
72112125146016
oct337577464036
985456746278
1030031112222
1111810864111
1259a1437a52
132aa79693b7
14164c626c46
15bab7224d2
hex6fdfe681e

30031112222 has 4 divisors (see below), whose sum is σ = 45046668336. Its totient is φ = 15015556110.

The previous prime is 30031112183. The next prime is 30031112231. The reversal of 30031112222 is 22221113003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22221113003 = 89249675427.

It is a self number, because there is not a number n which added to its sum of digits gives 30031112222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7507778054 + ... + 7507778057.

It is an arithmetic number, because the mean of its divisors is an integer number (11261667084).

Almost surely, 230031112222 is an apocalyptic number.

30031112222 is a deficient number, since it is larger than the sum of its proper divisors (15015556114).

30031112222 is a wasteful number, since it uses less digits than its factorization.

30031112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015556113.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30031112222 its reverse (22221113003), we get a palindrome (52252225225).

The spelling of 30031112222 in words is "thirty billion, thirty-one million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 15015556111 30031112222