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30003120030012 = 2232500260002501
BaseRepresentation
bin1101101001001101001010…
…10011111100000100111100
310221020021022000120201001020
412310212211103330010330
512413032342211430022
6143451124300144140
76214440166246503
oct664464523740474
9127207260521036
1030003120030012
119618285093858
123446980238050
13139838895b25c
1475a2318b983a
153706b3b7c35c
hex1b49a54fc13c

30003120030012 has 12 divisors (see below), whose sum is σ = 70007280070056. Its totient is φ = 10001040010000.

The previous prime is 30003120030011. The next prime is 30003120030017. The reversal of 30003120030012 is 21003002130003.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 30003120029973 and 30003120030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003120030011) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1250130001239 + ... + 1250130001262.

It is an arithmetic number, because the mean of its divisors is an integer number (5833940005838).

Almost surely, 230003120030012 is an apocalyptic number.

It is an amenable number.

30003120030012 is an abundant number, since it is smaller than the sum of its proper divisors (40004160040044).

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

30003120030012 is a wasteful number, since it uses less digits than its factorization.

30003120030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500260002508 (or 2500260002506 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30003120030012 its reverse (21003002130003), we get a palindrome (51006122160015).

The spelling of 30003120030012 in words is "thirty trillion, three billion, one hundred twenty million, thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 2500260002501 5000520005002 7500780007503 10001040010004 15001560015006 30003120030012