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30051243112 = 23111451235349
BaseRepresentation
bin11011111111001100…
…011001010001101000
32212120022201022201011
4123333030121101220
5443021104234422
621445542233304
72112461231452
oct337714312150
985508638634
1030051243112
1111821163810
1259a8125834
132aabb97277
1416511872d2
15bad39c077
hex6ff319468

30051243112 has 32 divisors (see below), whose sum is σ = 61511076000. Its totient is φ = 13650184000.

The previous prime is 30051243107. The next prime is 30051243151. The reversal of 30051243112 is 21134215003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10014 + ... + 245362.

It is an arithmetic number, because the mean of its divisors is an integer number (1922221125).

Almost surely, 230051243112 is an apocalyptic number.

It is an amenable number.

30051243112 is an abundant number, since it is smaller than the sum of its proper divisors (31459832888).

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

30051243112 is a wasteful number, since it uses less digits than its factorization.

30051243112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236817 (or 236813 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 30051243112 its reverse (21134215003), we get a palindrome (51185458115).

The spelling of 30051243112 in words is "thirty billion, fifty-one million, two hundred forty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 1451 2902 5804 11608 15961 31922 63844 127688 235349 470698 941396 1882792 2588839 5177678 10355356 20710712 341491399 682982798 1365965596 2731931192 3756405389 7512810778 15025621556 30051243112