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30121286024 = 2389372711351
BaseRepresentation
bin11100000011010111…
…100101100110001000
32212202012111212112002
4130003113211212020
5443142022123044
621500523410132
72114301464264
oct340327454610
985665455462
1030121286024
1111857754015
125a07683948
132ac054c48b
14165a5bb0a4
15bb45d574e
hex7035e5988

30121286024 has 32 divisors (see below), whose sum is σ = 57132345600. Its totient is φ = 14886115200.

The previous prime is 30121286023. The next prime is 30121286051. The reversal of 30121286024 is 42068212103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30121286021) 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, 2647949 + ... + 2659299.

It is an arithmetic number, because the mean of its divisors is an integer number (1785385800).

Almost surely, 230121286024 is an apocalyptic number.

It is an amenable number.

30121286024 is a deficient number, since it is larger than the sum of its proper divisors (27011059576).

30121286024 is a wasteful number, since it uses less digits than its factorization.

30121286024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15173 (or 15169 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 30121286024 its reverse (42068212103), we get a palindrome (72189498127).

The spelling of 30121286024 in words is "thirty billion, one hundred twenty-one million, two hundred eighty-six thousand, twenty-four".

Divisors: 1 2 4 8 89 178 356 712 3727 7454 11351 14908 22702 29816 45404 90808 331703 663406 1010239 1326812 2020478 2653624 4040956 8081912 42305177 84610354 169220708 338441416 3765160753 7530321506 15060643012 30121286024