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30053512112 = 2413144488039
BaseRepresentation
bin11011111111010101…
…000011001110110000
32212120110222121012012
4123333111003032300
5443022144341422
621450103022052
72112516431561
oct337725031660
985513877165
1030053512112
1111822473518
1259a8a3a928
132aac4acc80
1416515b8168
15bad6994e2
hex6ff5433b0

30053512112 has 20 divisors (see below), whose sum is σ = 62707809360. Its totient is φ = 13870851648.

The previous prime is 30053512039. The next prime is 30053512127. The reversal of 30053512112 is 21121535003.

It is a happy number.

It is a super-2 number, since 2×300535121122 (a number of 22 digits) contains 22 as substring.

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, 72243812 + ... + 72244227.

It is an arithmetic number, because the mean of its divisors is an integer number (3135390468).

Almost surely, 230053512112 is an apocalyptic number.

It is an amenable number.

30053512112 is an abundant number, since it is smaller than the sum of its proper divisors (32654297248).

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

30053512112 is a wasteful number, since it uses less digits than its factorization.

30053512112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144488060 (or 144488054 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 30053512112 in words is "thirty billion, fifty-three million, five hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 144488039 288976078 577952156 1155904312 1878344507 2311808624 3756689014 7513378028 15026756056 30053512112