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12400020030 = 235413334001
BaseRepresentation
bin10111000110001100…
…10100101000111110
31012000011211021200010
423203012110220332
5200343401120110
65410235244050
7616166300616
oct134306245076
935004737603
1012400020030
115293540642
1224a08a9626
131227cb2278
14858bc9a46
154c893a020
hex2e3194a3e

12400020030 has 16 divisors (see below), whose sum is σ = 29760048144. Its totient is φ = 3306672000.

The previous prime is 12400020023. The next prime is 12400020077. The reversal of 12400020030 is 3002000421.

12400020030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12400019988 and 12400020015.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 206666971 + ... + 206667030.

It is an arithmetic number, because the mean of its divisors is an integer number (1860003009).

Almost surely, 212400020030 is an apocalyptic number.

12400020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12400020030 is an abundant number, since it is smaller than the sum of its proper divisors (17360028114).

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

12400020030 is a wasteful number, since it uses less digits than its factorization.

12400020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413334011.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 12400020030 its reverse (3002000421), we get a palindrome (15402020451).

The spelling of 12400020030 in words is "twelve billion, four hundred million, twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 413334001 826668002 1240002003 2066670005 2480004006 4133340010 6200010015 12400020030