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30402124005 = 3511521353657
BaseRepresentation
bin11100010100000110…
…111001100011100101
32220110202221220210210
4130110012321203211
5444230420432010
621544435010033
72124251535021
oct342406714345
986422856723
1030402124005
111199122a820
125a85739919
132b3679b3b6
141685a03381
15bce0abb20
hex7141b98e5

30402124005 has 32 divisors (see below), whose sum is σ = 53167529088. Its totient is φ = 14712089600.

The previous prime is 30402124001. The next prime is 30402124007. The reversal of 30402124005 is 50042120403.

It is not a de Polignac number, because 30402124005 - 22 = 30402124001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402124001) 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 31 ways as a sum of consecutive naturals, for example, 90864 + ... + 262793.

It is an arithmetic number, because the mean of its divisors is an integer number (1661485284).

Almost surely, 230402124005 is an apocalyptic number.

It is an amenable number.

30402124005 is a deficient number, since it is larger than the sum of its proper divisors (22765405083).

30402124005 is a wasteful number, since it uses less digits than its factorization.

30402124005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354197.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 30402124005 its reverse (50042120403), we get a palindrome (80444244408).

The spelling of 30402124005 in words is "thirty billion, four hundred two million, one hundred twenty-four thousand, five".

Divisors: 1 3 5 11 15 33 55 165 521 1563 2605 5731 7815 17193 28655 85965 353657 1060971 1768285 3890227 5304855 11670681 19451135 58353405 184255297 552765891 921276485 2026808267 2763829455 6080424801 10134041335 30402124005