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124030030421 = 1111275457311
BaseRepresentation
bin111001110000011000…
…1000001001001010101
3102212010212101100221102
41303200301001021111
54013003141433141
6132551213555445
711650402602143
oct1634061011125
9385125340842
10124030030421
114866779a680
12200554a5b85
13b9080c185b
146008676593
15335dbad99b
hex1ce0c41255

124030030421 has 4 divisors (see below), whose sum is σ = 135305487744. Its totient is φ = 112754573100.

The previous prime is 124030030381. The next prime is 124030030463.

124030030421 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124030030421 - 230 = 122956288597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124030030393 and 124030030402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124030030921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5637728645 + ... + 5637728666.

It is an arithmetic number, because the mean of its divisors is an integer number (33826371936).

Almost surely, 2124030030421 is an apocalyptic number.

124030030421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124030030421 is a deficient number, since it is larger than the sum of its proper divisors (11275457323).

124030030421 is a wasteful number, since it uses less digits than its factorization.

124030030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275457322.

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 1240300 and 30421, that added together give a palindrome (1270721).

The spelling of 124030030421 in words is "one hundred twenty-four billion, thirty million, thirty thousand, four hundred twenty-one".

Divisors: 1 11 11275457311 124030030421