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30231421010 = 257538148631
BaseRepresentation
bin11100001001111011…
…101110000001010010
32220000212202022022122
4130021323232001102
5443403220433020
621515500134242
72120106560450
oct341173560122
986025668278
1030231421010
111190393806a
125a38537382
132b0a3010cb
14166b0899d0
15bbe0dd125
hex709eee052

30231421010 has 32 divisors (see below), whose sum is σ = 63363762432. Its totient is φ = 10169490240.

The previous prime is 30231421009. The next prime is 30231421019. The reversal of 30231421010 is 1012413203.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30231421010.

It is not an unprimeable number, because it can be changed into a prime (30231421019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4070606 + ... + 4078025.

It is an arithmetic number, because the mean of its divisors is an integer number (1980117576).

Almost surely, 230231421010 is an apocalyptic number.

30231421010 is an abundant number, since it is smaller than the sum of its proper divisors (33132341422).

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

30231421010 is a wasteful number, since it uses less digits than its factorization.

30231421010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148698.

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

Adding to 30231421010 its reverse (1012413203), we get a palindrome (31243834213).

The spelling of 30231421010 in words is "thirty billion, two hundred thirty-one million, four hundred twenty-one thousand, ten".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 8148631 16297262 40743155 57040417 81486310 114080834 285202085 431877443 570404170 863754886 2159387215 3023142101 4318774430 6046284202 15115710505 30231421010